42c7cb6969
Original commit: a61f9fe317
Multiple 2-stage buildbots were reporting failures. These issues have been
addressed separately.
Fixes: https://github.com/llvm/llvm-project/issues/87534.
79 lines
3.4 KiB
LLVM
79 lines
3.4 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 4
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; RUN: opt < %s -passes=inline -S | FileCheck %s
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; RUN: opt < %s -passes='cgscc(inline)' -S | FileCheck %s
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%struct.a = type { i32, i32, i32, i32, i32 }
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@g_var = global %struct.a { i32 1, i32 0, i32 0, i32 0, i32 0 }, align 8
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@other_g_var = global %struct.a zeroinitializer, align 4
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define void @callee(ptr noundef byval(%struct.a) align 8 %ptr) {
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; CHECK-LABEL: define void @callee(
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; CHECK-SAME: ptr noundef byval([[STRUCT_A:%.*]]) align 8 [[PTR:%.*]]) {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[VAL:%.*]] = load i32, ptr [[PTR]], align 8
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; CHECK-NEXT: [[DOTNOT:%.*]] = icmp eq i32 [[VAL]], 0
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; CHECK-NEXT: br i1 [[DOTNOT]], label [[CHECK_POINTERS_ARE_EQUAL:%.*]], label [[STORE_PTR_IN_GVAR:%.*]]
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; CHECK: store_ptr_in_gvar:
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; CHECK-NEXT: store ptr [[PTR]], ptr @other_g_var, align 8
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; CHECK-NEXT: br label [[CHECK_POINTERS_ARE_EQUAL]]
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; CHECK: check_pointers_are_equal:
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; CHECK-NEXT: [[PHI:%.*]] = phi ptr [ [[PTR]], [[STORE_PTR_IN_GVAR]] ], [ @other_g_var, [[ENTRY:%.*]] ]
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; CHECK-NEXT: [[DOTNOT1:%.*]] = icmp eq ptr [[PHI]], [[PTR]]
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; CHECK-NEXT: br i1 [[DOTNOT1]], label [[RETURN:%.*]], label [[ABORT:%.*]]
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; CHECK: abort:
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; CHECK-NEXT: call void @abort()
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; CHECK-NEXT: unreachable
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; CHECK: return:
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; CHECK-NEXT: ret void
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;
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entry:
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%val = load i32, ptr %ptr, align 8
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%.not = icmp eq i32 %val, 0
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br i1 %.not, label %check_pointers_are_equal, label %store_ptr_in_gvar
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store_ptr_in_gvar: ; preds = %entry
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store ptr %ptr, ptr @other_g_var, align 8
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br label %check_pointers_are_equal
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check_pointers_are_equal: ; preds = %store_ptr_in_gvar, %entry
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%phi = phi ptr [ %ptr, %store_ptr_in_gvar ], [ @other_g_var, %entry ]
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%.not1 = icmp eq ptr %phi, %ptr
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br i1 %.not1, label %return, label %abort
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abort: ; preds = %check_pointers_are_equal
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call void @abort()
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unreachable
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return: ; preds = %check_pointers_are_equal
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ret void
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}
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define i32 @main() {
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; CHECK-LABEL: define i32 @main() {
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; CHECK-NEXT: [[G_VAR:%.*]] = alloca [[STRUCT_A:%.*]], align 8
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; CHECK-NEXT: call void @llvm.lifetime.start.p0(i64 20, ptr [[G_VAR]])
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; CHECK-NEXT: call void @llvm.memcpy.p0.p0.i64(ptr align 1 [[G_VAR]], ptr align 1 @g_var, i64 20, i1 false)
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; CHECK-NEXT: [[VAL_I:%.*]] = load i32, ptr [[G_VAR]], align 8
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; CHECK-NEXT: [[DOTNOT_I:%.*]] = icmp eq i32 [[VAL_I]], 0
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; CHECK-NEXT: br i1 [[DOTNOT_I]], label [[CHECK_POINTERS_ARE_EQUAL_I:%.*]], label [[STORE_PTR_IN_GVAR_I:%.*]]
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; CHECK: store_ptr_in_gvar.i:
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; CHECK-NEXT: store ptr [[G_VAR]], ptr @other_g_var, align 8
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; CHECK-NEXT: br label [[CHECK_POINTERS_ARE_EQUAL_I]]
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; CHECK: check_pointers_are_equal.i:
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; CHECK-NEXT: [[PHI_I:%.*]] = phi ptr [ [[G_VAR]], [[STORE_PTR_IN_GVAR_I]] ], [ @other_g_var, [[TMP0:%.*]] ]
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; CHECK-NEXT: [[DOTNOT1_I:%.*]] = icmp eq ptr [[PHI_I]], [[G_VAR]]
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; CHECK-NEXT: br i1 [[DOTNOT1_I]], label [[CALLEE_EXIT:%.*]], label [[ABORT_I:%.*]]
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; CHECK: abort.i:
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; CHECK-NEXT: call void @abort()
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; CHECK-NEXT: unreachable
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; CHECK: callee.exit:
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; CHECK-NEXT: call void @llvm.lifetime.end.p0(i64 20, ptr [[G_VAR]])
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; CHECK-NEXT: ret i32 0
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;
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call void @callee(ptr noundef byval(%struct.a) align 8 @g_var)
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ret i32 0
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}
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declare void @abort()
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