158d72d728
Set the writable and dead_on_unwind attributes for sret arguments. These indicate that the argument points to writable memory (and it's legal to introduce spurious writes to it on entry to the function) and that the argument memory will not be used if the call unwinds. This enables additional MemCpyOpt/DSE/LICM optimizations.
427 lines
16 KiB
C
427 lines
16 KiB
C
// RUN: %clang_cc1 -target-feature +altivec -triple powerpc64le-unknown-linux-gnu -emit-llvm -o - %s | FileCheck %s
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// Test homogeneous float aggregate passing and returning.
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struct f1 { float f[1]; };
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struct f2 { float f[2]; };
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struct f3 { float f[3]; };
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struct f4 { float f[4]; };
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struct f5 { float f[5]; };
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struct f6 { float f[6]; };
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struct f7 { float f[7]; };
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struct f8 { float f[8]; };
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struct f9 { float f[9]; };
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struct fab { float a; float b; };
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struct fabc { float a; float b; float c; };
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struct f2a2b { float a[2]; float b[2]; };
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// CHECK: define{{.*}} [1 x float] @func_f1(float inreg %x.coerce)
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struct f1 func_f1(struct f1 x) { return x; }
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// CHECK: define{{.*}} [2 x float] @func_f2([2 x float] %x.coerce)
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struct f2 func_f2(struct f2 x) { return x; }
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// CHECK: define{{.*}} [3 x float] @func_f3([3 x float] %x.coerce)
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struct f3 func_f3(struct f3 x) { return x; }
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// CHECK: define{{.*}} [4 x float] @func_f4([4 x float] %x.coerce)
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struct f4 func_f4(struct f4 x) { return x; }
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// CHECK: define{{.*}} [5 x float] @func_f5([5 x float] %x.coerce)
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struct f5 func_f5(struct f5 x) { return x; }
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// CHECK: define{{.*}} [6 x float] @func_f6([6 x float] %x.coerce)
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struct f6 func_f6(struct f6 x) { return x; }
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// CHECK: define{{.*}} [7 x float] @func_f7([7 x float] %x.coerce)
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struct f7 func_f7(struct f7 x) { return x; }
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// CHECK: define{{.*}} [8 x float] @func_f8([8 x float] %x.coerce)
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struct f8 func_f8(struct f8 x) { return x; }
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// CHECK: define{{.*}} void @func_f9(ptr dead_on_unwind noalias writable sret(%struct.f9) align 4 %agg.result, [5 x i64] %x.coerce)
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struct f9 func_f9(struct f9 x) { return x; }
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// CHECK: define{{.*}} [2 x float] @func_fab([2 x float] %x.coerce)
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struct fab func_fab(struct fab x) { return x; }
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// CHECK: define{{.*}} [3 x float] @func_fabc([3 x float] %x.coerce)
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struct fabc func_fabc(struct fabc x) { return x; }
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// CHECK: define{{.*}} [4 x float] @func_f2a2b([4 x float] %x.coerce)
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struct f2a2b func_f2a2b(struct f2a2b x) { return x; }
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// CHECK-LABEL: @call_f1
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// CHECK: %[[TMP:[^ ]+]] = load float, ptr @global_f1, align 4
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// CHECK: call [1 x float] @func_f1(float inreg %[[TMP]])
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struct f1 global_f1;
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void call_f1(void) { global_f1 = func_f1(global_f1); }
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// CHECK-LABEL: @call_f2
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// CHECK: %[[TMP:[^ ]+]] = load [2 x float], ptr @global_f2, align 4
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// CHECK: call [2 x float] @func_f2([2 x float] %[[TMP]])
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struct f2 global_f2;
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void call_f2(void) { global_f2 = func_f2(global_f2); }
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// CHECK-LABEL: @call_f3
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// CHECK: %[[TMP:[^ ]+]] = load [3 x float], ptr @global_f3, align 4
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// CHECK: call [3 x float] @func_f3([3 x float] %[[TMP]])
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struct f3 global_f3;
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void call_f3(void) { global_f3 = func_f3(global_f3); }
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// CHECK-LABEL: @call_f4
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// CHECK: %[[TMP:[^ ]+]] = load [4 x float], ptr @global_f4, align 4
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// CHECK: call [4 x float] @func_f4([4 x float] %[[TMP]])
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struct f4 global_f4;
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void call_f4(void) { global_f4 = func_f4(global_f4); }
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// CHECK-LABEL: @call_f5
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// CHECK: %[[TMP:[^ ]+]] = load [5 x float], ptr @global_f5, align 4
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// CHECK: call [5 x float] @func_f5([5 x float] %[[TMP]])
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struct f5 global_f5;
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void call_f5(void) { global_f5 = func_f5(global_f5); }
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// CHECK-LABEL: @call_f6
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// CHECK: %[[TMP:[^ ]+]] = load [6 x float], ptr @global_f6, align 4
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// CHECK: call [6 x float] @func_f6([6 x float] %[[TMP]])
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struct f6 global_f6;
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void call_f6(void) { global_f6 = func_f6(global_f6); }
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// CHECK-LABEL: @call_f7
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// CHECK: %[[TMP:[^ ]+]] = load [7 x float], ptr @global_f7, align 4
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// CHECK: call [7 x float] @func_f7([7 x float] %[[TMP]])
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struct f7 global_f7;
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void call_f7(void) { global_f7 = func_f7(global_f7); }
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// CHECK-LABEL: @call_f8
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// CHECK: %[[TMP:[^ ]+]] = load [8 x float], ptr @global_f8, align 4
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// CHECK: call [8 x float] @func_f8([8 x float] %[[TMP]])
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struct f8 global_f8;
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void call_f8(void) { global_f8 = func_f8(global_f8); }
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// CHECK-LABEL: @call_f9
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// CHECK: %[[TMP1:[^ ]+]] = alloca [5 x i64]
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// CHECK: call void @llvm.memcpy.p0.p0.i64(ptr align 8 %[[TMP1]], ptr align 4 @global_f9, i64 36, i1 false)
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// CHECK: %[[TMP3:[^ ]+]] = load [5 x i64], ptr %[[TMP1]]
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// CHECK: call void @func_f9(ptr dead_on_unwind writable sret(%struct.f9) align 4 %{{[^ ]+}}, [5 x i64] %[[TMP3]])
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struct f9 global_f9;
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void call_f9(void) { global_f9 = func_f9(global_f9); }
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// CHECK-LABEL: @call_fab
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// CHECK: %[[TMP:[^ ]+]] = load [2 x float], ptr @global_fab
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// CHECK: call [2 x float] @func_fab([2 x float] %[[TMP]])
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struct fab global_fab;
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void call_fab(void) { global_fab = func_fab(global_fab); }
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// CHECK-LABEL: @call_fabc
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// CHECK: %[[TMP:[^ ]+]] = load [3 x float], ptr @global_fabc
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// CHECK: call [3 x float] @func_fabc([3 x float] %[[TMP]])
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struct fabc global_fabc;
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void call_fabc(void) { global_fabc = func_fabc(global_fabc); }
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// Test homogeneous vector aggregate passing and returning.
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struct v1 { vector int v[1]; };
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struct v2 { vector int v[2]; };
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struct v3 { vector int v[3]; };
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struct v4 { vector int v[4]; };
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struct v5 { vector int v[5]; };
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struct v6 { vector int v[6]; };
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struct v7 { vector int v[7]; };
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struct v8 { vector int v[8]; };
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struct v9 { vector int v[9]; };
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struct vab { vector int a; vector int b; };
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struct vabc { vector int a; vector int b; vector int c; };
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// CHECK: define{{.*}} [1 x <4 x i32>] @func_v1(<4 x i32> inreg %x.coerce)
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struct v1 func_v1(struct v1 x) { return x; }
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// CHECK: define{{.*}} [2 x <4 x i32>] @func_v2([2 x <4 x i32>] %x.coerce)
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struct v2 func_v2(struct v2 x) { return x; }
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// CHECK: define{{.*}} [3 x <4 x i32>] @func_v3([3 x <4 x i32>] %x.coerce)
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struct v3 func_v3(struct v3 x) { return x; }
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// CHECK: define{{.*}} [4 x <4 x i32>] @func_v4([4 x <4 x i32>] %x.coerce)
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struct v4 func_v4(struct v4 x) { return x; }
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// CHECK: define{{.*}} [5 x <4 x i32>] @func_v5([5 x <4 x i32>] %x.coerce)
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struct v5 func_v5(struct v5 x) { return x; }
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// CHECK: define{{.*}} [6 x <4 x i32>] @func_v6([6 x <4 x i32>] %x.coerce)
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struct v6 func_v6(struct v6 x) { return x; }
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// CHECK: define{{.*}} [7 x <4 x i32>] @func_v7([7 x <4 x i32>] %x.coerce)
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struct v7 func_v7(struct v7 x) { return x; }
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// CHECK: define{{.*}} [8 x <4 x i32>] @func_v8([8 x <4 x i32>] %x.coerce)
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struct v8 func_v8(struct v8 x) { return x; }
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// CHECK: define{{.*}} void @func_v9(ptr dead_on_unwind noalias writable sret(%struct.v9) align 16 %agg.result, ptr noundef byval(%struct.v9) align 16 %x)
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struct v9 func_v9(struct v9 x) { return x; }
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// CHECK: define{{.*}} [2 x <4 x i32>] @func_vab([2 x <4 x i32>] %x.coerce)
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struct vab func_vab(struct vab x) { return x; }
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// CHECK: define{{.*}} [3 x <4 x i32>] @func_vabc([3 x <4 x i32>] %x.coerce)
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struct vabc func_vabc(struct vabc x) { return x; }
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// CHECK-LABEL: @call_v1
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// CHECK: %[[TMP:[^ ]+]] = load <4 x i32>, ptr @global_v1, align 1
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// CHECK: call [1 x <4 x i32>] @func_v1(<4 x i32> inreg %[[TMP]])
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struct v1 global_v1;
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void call_v1(void) { global_v1 = func_v1(global_v1); }
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// CHECK-LABEL: @call_v2
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// CHECK: %[[TMP:[^ ]+]] = load [2 x <4 x i32>], ptr @global_v2, align 1
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// CHECK: call [2 x <4 x i32>] @func_v2([2 x <4 x i32>] %[[TMP]])
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struct v2 global_v2;
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void call_v2(void) { global_v2 = func_v2(global_v2); }
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// CHECK-LABEL: @call_v3
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// CHECK: %[[TMP:[^ ]+]] = load [3 x <4 x i32>], ptr @global_v3, align 1
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// CHECK: call [3 x <4 x i32>] @func_v3([3 x <4 x i32>] %[[TMP]])
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struct v3 global_v3;
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void call_v3(void) { global_v3 = func_v3(global_v3); }
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// CHECK-LABEL: @call_v4
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// CHECK: %[[TMP:[^ ]+]] = load [4 x <4 x i32>], ptr @global_v4, align 1
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// CHECK: call [4 x <4 x i32>] @func_v4([4 x <4 x i32>] %[[TMP]])
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struct v4 global_v4;
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void call_v4(void) { global_v4 = func_v4(global_v4); }
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// CHECK-LABEL: @call_v5
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// CHECK: %[[TMP:[^ ]+]] = load [5 x <4 x i32>], ptr @global_v5, align 1
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// CHECK: call [5 x <4 x i32>] @func_v5([5 x <4 x i32>] %[[TMP]])
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struct v5 global_v5;
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void call_v5(void) { global_v5 = func_v5(global_v5); }
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// CHECK-LABEL: @call_v6
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// CHECK: %[[TMP:[^ ]+]] = load [6 x <4 x i32>], ptr @global_v6, align 1
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// CHECK: call [6 x <4 x i32>] @func_v6([6 x <4 x i32>] %[[TMP]])
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struct v6 global_v6;
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void call_v6(void) { global_v6 = func_v6(global_v6); }
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// CHECK-LABEL: @call_v7
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// CHECK: %[[TMP:[^ ]+]] = load [7 x <4 x i32>], ptr @global_v7, align 1
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// CHECK: call [7 x <4 x i32>] @func_v7([7 x <4 x i32>] %[[TMP]])
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struct v7 global_v7;
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void call_v7(void) { global_v7 = func_v7(global_v7); }
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// CHECK-LABEL: @call_v8
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// CHECK: %[[TMP:[^ ]+]] = load [8 x <4 x i32>], ptr @global_v8, align 1
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// CHECK: call [8 x <4 x i32>] @func_v8([8 x <4 x i32>] %[[TMP]])
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struct v8 global_v8;
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void call_v8(void) { global_v8 = func_v8(global_v8); }
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// CHECK-LABEL: @call_v9
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// CHECK: call void @func_v9(ptr dead_on_unwind writable sret(%struct.v9) align 16 %{{[^ ]+}}, ptr noundef byval(%struct.v9) align 16 @global_v9)
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struct v9 global_v9;
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void call_v9(void) { global_v9 = func_v9(global_v9); }
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// CHECK-LABEL: @call_vab
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// CHECK: %[[TMP:[^ ]+]] = load [2 x <4 x i32>], ptr @global_vab
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// CHECK: call [2 x <4 x i32>] @func_vab([2 x <4 x i32>] %[[TMP]])
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struct vab global_vab;
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void call_vab(void) { global_vab = func_vab(global_vab); }
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// CHECK-LABEL: @call_vabc
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// CHECK: %[[TMP:[^ ]+]] = load [3 x <4 x i32>], ptr @global_vabc
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// CHECK: call [3 x <4 x i32>] @func_vabc([3 x <4 x i32>] %[[TMP]])
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struct vabc global_vabc;
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void call_vabc(void) { global_vabc = func_vabc(global_vabc); }
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// As clang extension, non-power-of-two vectors may also be part of
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// homogeneous aggregates.
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typedef float float3 __attribute__((vector_size (12)));
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struct v3f1 { float3 v[1]; };
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struct v3f2 { float3 v[2]; };
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struct v3f3 { float3 v[3]; };
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struct v3f4 { float3 v[4]; };
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struct v3f5 { float3 v[5]; };
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struct v3f6 { float3 v[6]; };
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struct v3f7 { float3 v[7]; };
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struct v3f8 { float3 v[8]; };
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struct v3f9 { float3 v[9]; };
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struct v3fab { float3 a; float3 b; };
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struct v3fabc { float3 a; float3 b; float3 c; };
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// CHECK: define{{.*}} [1 x <4 x float>] @func_v3f1(<3 x float> inreg %x.coerce)
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struct v3f1 func_v3f1(struct v3f1 x) { return x; }
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// CHECK: define{{.*}} [2 x <4 x float>] @func_v3f2([2 x <4 x float>] %x.coerce)
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struct v3f2 func_v3f2(struct v3f2 x) { return x; }
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// CHECK: define{{.*}} [3 x <4 x float>] @func_v3f3([3 x <4 x float>] %x.coerce)
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struct v3f3 func_v3f3(struct v3f3 x) { return x; }
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// CHECK: define{{.*}} [4 x <4 x float>] @func_v3f4([4 x <4 x float>] %x.coerce)
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struct v3f4 func_v3f4(struct v3f4 x) { return x; }
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// CHECK: define{{.*}} [5 x <4 x float>] @func_v3f5([5 x <4 x float>] %x.coerce)
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struct v3f5 func_v3f5(struct v3f5 x) { return x; }
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// CHECK: define{{.*}} [6 x <4 x float>] @func_v3f6([6 x <4 x float>] %x.coerce)
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struct v3f6 func_v3f6(struct v3f6 x) { return x; }
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// CHECK: define{{.*}} [7 x <4 x float>] @func_v3f7([7 x <4 x float>] %x.coerce)
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struct v3f7 func_v3f7(struct v3f7 x) { return x; }
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// CHECK: define{{.*}} [8 x <4 x float>] @func_v3f8([8 x <4 x float>] %x.coerce)
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struct v3f8 func_v3f8(struct v3f8 x) { return x; }
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// CHECK: define{{.*}} void @func_v3f9(ptr dead_on_unwind noalias writable sret(%struct.v3f9) align 16 %agg.result, ptr noundef byval(%struct.v3f9) align 16 %x)
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struct v3f9 func_v3f9(struct v3f9 x) { return x; }
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// CHECK: define{{.*}} [2 x <4 x float>] @func_v3fab([2 x <4 x float>] %x.coerce)
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struct v3fab func_v3fab(struct v3fab x) { return x; }
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// CHECK: define{{.*}} [3 x <4 x float>] @func_v3fabc([3 x <4 x float>] %x.coerce)
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struct v3fabc func_v3fabc(struct v3fabc x) { return x; }
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// CHECK-LABEL: @call_v3f1
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// CHECK: %[[TMP:[^ ]+]] = load <3 x float>, ptr @global_v3f1, align 1
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// CHECK: call [1 x <4 x float>] @func_v3f1(<3 x float> inreg %[[TMP]])
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struct v3f1 global_v3f1;
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void call_v3f1(void) { global_v3f1 = func_v3f1(global_v3f1); }
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// CHECK-LABEL: @call_v3f2
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// CHECK: %[[TMP:[^ ]+]] = load [2 x <4 x float>], ptr @global_v3f2, align 16
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// CHECK: call [2 x <4 x float>] @func_v3f2([2 x <4 x float>] %[[TMP]])
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struct v3f2 global_v3f2;
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void call_v3f2(void) { global_v3f2 = func_v3f2(global_v3f2); }
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// CHECK-LABEL: @call_v3f3
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// CHECK: %[[TMP:[^ ]+]] = load [3 x <4 x float>], ptr @global_v3f3, align 16
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// CHECK: call [3 x <4 x float>] @func_v3f3([3 x <4 x float>] %[[TMP]])
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struct v3f3 global_v3f3;
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void call_v3f3(void) { global_v3f3 = func_v3f3(global_v3f3); }
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// CHECK-LABEL: @call_v3f4
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// CHECK: %[[TMP:[^ ]+]] = load [4 x <4 x float>], ptr @global_v3f4, align 16
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// CHECK: call [4 x <4 x float>] @func_v3f4([4 x <4 x float>] %[[TMP]])
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struct v3f4 global_v3f4;
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void call_v3f4(void) { global_v3f4 = func_v3f4(global_v3f4); }
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// CHECK-LABEL: @call_v3f5
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// CHECK: %[[TMP:[^ ]+]] = load [5 x <4 x float>], ptr @global_v3f5, align 16
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// CHECK: call [5 x <4 x float>] @func_v3f5([5 x <4 x float>] %[[TMP]])
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struct v3f5 global_v3f5;
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void call_v3f5(void) { global_v3f5 = func_v3f5(global_v3f5); }
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// CHECK-LABEL: @call_v3f6
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// CHECK: %[[TMP:[^ ]+]] = load [6 x <4 x float>], ptr @global_v3f6, align 16
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// CHECK: call [6 x <4 x float>] @func_v3f6([6 x <4 x float>] %[[TMP]])
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struct v3f6 global_v3f6;
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void call_v3f6(void) { global_v3f6 = func_v3f6(global_v3f6); }
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// CHECK-LABEL: @call_v3f7
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// CHECK: %[[TMP:[^ ]+]] = load [7 x <4 x float>], ptr @global_v3f7, align 16
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// CHECK: call [7 x <4 x float>] @func_v3f7([7 x <4 x float>] %[[TMP]])
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struct v3f7 global_v3f7;
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void call_v3f7(void) { global_v3f7 = func_v3f7(global_v3f7); }
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// CHECK-LABEL: @call_v3f8
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// CHECK: %[[TMP:[^ ]+]] = load [8 x <4 x float>], ptr @global_v3f8, align 16
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// CHECK: call [8 x <4 x float>] @func_v3f8([8 x <4 x float>] %[[TMP]])
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struct v3f8 global_v3f8;
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void call_v3f8(void) { global_v3f8 = func_v3f8(global_v3f8); }
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// CHECK-LABEL: @call_v3f9
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// CHECK: call void @func_v3f9(ptr dead_on_unwind writable sret(%struct.v3f9) align 16 %{{[^ ]+}}, ptr noundef byval(%struct.v3f9) align 16 @global_v3f9)
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struct v3f9 global_v3f9;
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void call_v3f9(void) { global_v3f9 = func_v3f9(global_v3f9); }
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// CHECK-LABEL: @call_v3fab
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// CHECK: %[[TMP:[^ ]+]] = load [2 x <4 x float>], ptr @global_v3fab, align 16
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// CHECK: call [2 x <4 x float>] @func_v3fab([2 x <4 x float>] %[[TMP]])
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struct v3fab global_v3fab;
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void call_v3fab(void) { global_v3fab = func_v3fab(global_v3fab); }
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// CHECK-LABEL: @call_v3fabc
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// CHECK: %[[TMP:[^ ]+]] = load [3 x <4 x float>], ptr @global_v3fabc, align 16
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// CHECK: call [3 x <4 x float>] @func_v3fabc([3 x <4 x float>] %[[TMP]])
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struct v3fabc global_v3fabc;
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void call_v3fabc(void) { global_v3fabc = func_v3fabc(global_v3fabc); }
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// Test returning small aggregates.
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struct s1 { char c[1]; };
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struct s2 { char c[2]; };
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struct s3 { char c[3]; };
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struct s4 { char c[4]; };
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struct s5 { char c[5]; };
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struct s6 { char c[6]; };
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struct s7 { char c[7]; };
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struct s8 { char c[8]; };
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struct s9 { char c[9]; };
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struct s16 { char c[16]; };
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struct s17 { char c[17]; };
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// CHECK: define{{.*}} i8 @ret_s1()
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struct s1 ret_s1(void) {
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return (struct s1) { 17 };
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}
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// CHECK: define{{.*}} i16 @ret_s2()
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struct s2 ret_s2(void) {
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return (struct s2) { 17, 18 };
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}
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// CHECK: define{{.*}} i24 @ret_s3()
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struct s3 ret_s3(void) {
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return (struct s3) { 17, 18, 19 };
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}
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// CHECK: define{{.*}} i32 @ret_s4()
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struct s4 ret_s4(void) {
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return (struct s4) { 17, 18, 19, 20 };
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}
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// CHECK: define{{.*}} i40 @ret_s5()
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struct s5 ret_s5(void) {
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return (struct s5) { 17, 18, 19, 20, 21 };
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}
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// CHECK: define{{.*}} i48 @ret_s6()
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struct s6 ret_s6(void) {
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return (struct s6) { 17, 18, 19, 20, 21, 22 };
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}
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// CHECK: define{{.*}} i56 @ret_s7()
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struct s7 ret_s7(void) {
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return (struct s7) { 17, 18, 19, 20, 21, 22, 23 };
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}
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// CHECK: define{{.*}} i64 @ret_s8()
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struct s8 ret_s8(void) {
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return (struct s8) { 17, 18, 19, 20, 21, 22, 23, 24 };
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}
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// CHECK: define{{.*}} { i64, i64 } @ret_s9()
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struct s9 ret_s9(void) {
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return (struct s9) { 17, 18, 19, 20, 21, 22, 23, 24, 25 };
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}
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// CHECK: define{{.*}} { i64, i64 } @ret_s16()
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struct s16 ret_s16(void) {
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|
return (struct s16) { 17, 18, 19, 20, 21, 22, 23, 24,
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25, 26, 27, 28, 29, 30, 31, 32 };
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}
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// CHECK: define{{.*}} void @ret_s17(ptr
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struct s17 ret_s17(void) {
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return (struct s17) { 17, 18, 19, 20, 21, 22, 23, 24,
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|
25, 26, 27, 28, 29, 30, 31, 32, 33 };
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}
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