84e2fd7ee4
On PowerPC the number of TOC entries must be kept low for large applications. In order to reduce the number of constant global arrays we can pool them into one structure and then access them as the base address of that structure plus some offset. The constant global arrays may be arrays of `i8` which are constant strings but they may also be arrays of `i32, i64, etc...`. Reviewed By: lei, amyk Differential Revision: https://reviews.llvm.org/D155730
117 lines
8.3 KiB
YAML
117 lines
8.3 KiB
YAML
# RUN: llc -run-pass=ppc-merge-strings -mcpu=pwr8 -mtriple powerpc64le-unknown-linux-gnu \
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# RUN: -verify-machineinstrs -o - %s | FileCheck %s
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# RUN: llc -run-pass=ppc-merge-strings -mcpu=pwr8 -mtriple powerpc64-ibm-aix-xcoff \
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# RUN: -verify-machineinstrs -o - %s | FileCheck %s
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--- |
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; Constants list.
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@.str = private unnamed_addr constant [8 x i8] c"ABCDEFG\00", align 1
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@__const.test2.A = private unnamed_addr constant [6 x i32] [i32 34, i32 23, i32 653, i32 12, i32 75, i32 32], align 4
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@__const.test3.A = private unnamed_addr constant [7 x float] [float 0x400AA3D700000000, float 0x4021EB8520000000, float 0x4023147AE0000000, float 0x401CEB8520000000, float 0x401C8F5C20000000, float 0x402075C280000000, float 0x3FF1C28F60000000], align 4
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@__const.test4.A = private unnamed_addr constant [7 x double] [double 3.330000e+00, double 8.960000e+00, double 0x4023147AE147AE14, double 7.230000e+00, double 7.140000e+00, double 8.230000e+00, double 1.110000e+00], align 8
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@.str.1 = private unnamed_addr constant [16 x i8] c"DifferentString\00", align 1
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@__const.test5.B = private unnamed_addr constant [6 x i32] [i32 134, i32 123, i32 53, i32 142, i32 375, i32 132], align 4
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@__const.test5.C = private unnamed_addr constant [7 x float] [float 0x4037547AE0000000, float 0x403CF5C280000000, float 0x40338A3D80000000, float 0x40313AE140000000, float 0x404111EB80000000, float 0x40323AE140000000, float 0x40263851E0000000], align 4
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@__const.test5.D = private unnamed_addr constant [7 x double] [double 2.333000e+01, double 2.896000e+01, double 1.954000e+01, double 1.723000e+01, double 3.414000e+01, double 1.823000e+01, double 1.111000e+01], align 8
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; CHECK: @__ModuleStringPool = private constant { [7 x double], [7 x double], [6 x i32], [6 x i32], [7 x float], [7 x float], [8 x i8], [16 x i8] } { [7 x double] [double 3.330000e+00, double 8.960000e+00, double 0x4023147AE147AE14, double 7.230000e+00, double 7.140000e+00, double 8.230000e+00, double 1.110000e+00], [7 x double] [double 2.333000e+01, double 2.896000e+01, double 1.954000e+01, double 1.723000e+01, double 3.414000e+01, double 1.823000e+01, double 1.111000e+01], [6 x i32] [i32 34, i32 23, i32 653, i32 12, i32 75, i32 32], [6 x i32] [i32 134, i32 123, i32 53, i32 142, i32 375, i32 132], [7 x float] [float 0x400AA3D700000000, float 0x4021EB8520000000, float 0x4023147AE0000000, float 0x401CEB8520000000, float 0x401C8F5C20000000, float 0x402075C280000000, float 0x3FF1C28F60000000], [7 x float] [float 0x4037547AE0000000, float 0x403CF5C280000000, float 0x40338A3D80000000, float 0x40313AE140000000, float 0x404111EB80000000, float 0x40323AE140000000, float 0x40263851E0000000], [8 x i8] c"ABCDEFG\00", [16 x i8] c"DifferentString\00" }, align 8
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; List of callee functions.
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declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0
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declare signext i32 @calleeStr(ptr noundef) local_unnamed_addr #0
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declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0
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declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #0
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declare signext i32 @calleeInt(ptr noundef) local_unnamed_addr #0
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declare signext i32 @calleeFloat(ptr noundef) local_unnamed_addr #0
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declare signext i32 @calleeDouble(ptr noundef) local_unnamed_addr #0
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;;
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;; Start of test code.
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;;
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define dso_local signext i32 @test1() local_unnamed_addr #0 {
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entry:
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%call = tail call signext i32 @calleeStr(ptr noundef nonnull @.str) #0
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ret i32 %call
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; CHECK-LABEL: test1
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; CHECK: %0 = getelementptr { [7 x double], [7 x double], [6 x i32], [6 x i32], [7 x float], [7 x float], [8 x i8], [16 x i8] }, ptr @__ModuleStringPool, i32 0, i32 6
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; CHECK: tail call signext i32 @calleeStr
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}
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define dso_local signext i32 @test2() local_unnamed_addr #0 {
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entry:
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%A = alloca [6 x i32], align 4
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call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %A) #0
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call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 4 dereferenceable(24) %A, ptr noundef nonnull align 4 dereferenceable(24) @__const.test2.A, i64 24, i1 false)
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%call = call signext i32 @calleeInt(ptr noundef nonnull %A) #0
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call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %A) #0
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ret i32 %call
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; CHECK-LABEL: test2
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; CHECK: %0 = getelementptr { [7 x double], [7 x double], [6 x i32], [6 x i32], [7 x float], [7 x float], [8 x i8], [16 x i8] }, ptr @__ModuleStringPool, i32 0, i32 2
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; CHECK: call signext i32 @calleeInt
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}
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define dso_local signext i32 @test3() local_unnamed_addr #0 {
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entry:
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%A = alloca [7 x float], align 4
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call void @llvm.lifetime.start.p0(i64 28, ptr nonnull %A) #0
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call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 4 dereferenceable(28) %A, ptr noundef nonnull align 4 dereferenceable(28) @__const.test3.A, i64 28, i1 false)
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%call = call signext i32 @calleeFloat(ptr noundef nonnull %A) #0
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call void @llvm.lifetime.end.p0(i64 28, ptr nonnull %A) #0
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ret i32 %call
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; CHECK-LABEL: test3
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; CHECK: %0 = getelementptr { [7 x double], [7 x double], [6 x i32], [6 x i32], [7 x float], [7 x float], [8 x i8], [16 x i8] }, ptr @__ModuleStringPool, i32 0, i32 4
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; CHECK: call signext i32 @calleeFloat
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}
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define dso_local signext i32 @test4() local_unnamed_addr #0 {
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entry:
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%A = alloca [7 x double], align 8
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call void @llvm.lifetime.start.p0(i64 56, ptr nonnull %A) #0
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call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 8 dereferenceable(56) %A, ptr noundef nonnull align 8 dereferenceable(56) @__const.test4.A, i64 56, i1 false)
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%call = call signext i32 @calleeDouble(ptr noundef nonnull %A) #0
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call void @llvm.lifetime.end.p0(i64 56, ptr nonnull %A) #0
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ret i32 %call
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; CHECK-LABEL: test4
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; CHECK: %0 = getelementptr { [7 x double], [7 x double], [6 x i32], [6 x i32], [7 x float], [7 x float], [8 x i8], [16 x i8] }, ptr @__ModuleStringPool, i32 0, i32 0
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; CHECK: call signext i32 @calleeDouble
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}
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define dso_local signext i32 @test5() local_unnamed_addr #0 {
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entry:
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%B = alloca [6 x i32], align 4
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%C = alloca [7 x float], align 4
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%D = alloca [7 x double], align 8
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call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %B) #0
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call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 4 dereferenceable(24) %B, ptr noundef nonnull align 4 dereferenceable(24) @__const.test5.B, i64 24, i1 false)
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call void @llvm.lifetime.start.p0(i64 28, ptr nonnull %C) #0
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call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 4 dereferenceable(28) %C, ptr noundef nonnull align 4 dereferenceable(28) @__const.test5.C, i64 28, i1 false)
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call void @llvm.lifetime.start.p0(i64 56, ptr nonnull %D) #0
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call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 8 dereferenceable(56) %D, ptr noundef nonnull align 8 dereferenceable(56) @__const.test5.D, i64 56, i1 false)
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%call = tail call signext i32 @calleeStr(ptr noundef nonnull @.str.1) #0
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%call1 = call signext i32 @calleeInt(ptr noundef nonnull %B) #0
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%add = add nsw i32 %call1, %call
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%call3 = call signext i32 @calleeFloat(ptr noundef nonnull %C) #0
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%add4 = add nsw i32 %add, %call3
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%call6 = call signext i32 @calleeDouble(ptr noundef nonnull %D) #0
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%add7 = add nsw i32 %add4, %call6
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call void @llvm.lifetime.end.p0(i64 56, ptr nonnull %D) #0
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call void @llvm.lifetime.end.p0(i64 28, ptr nonnull %C) #0
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call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %B) #0
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ret i32 %add7
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; CHECK-LABEL: test5
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; CHECK: %0 = getelementptr { [7 x double], [7 x double], [6 x i32], [6 x i32], [7 x float], [7 x float], [8 x i8], [16 x i8] }, ptr @__ModuleStringPool, i32 0, i32 3
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; CHECK: %1 = getelementptr { [7 x double], [7 x double], [6 x i32], [6 x i32], [7 x float], [7 x float], [8 x i8], [16 x i8] }, ptr @__ModuleStringPool, i32 0, i32 5
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; CHECK: %2 = getelementptr { [7 x double], [7 x double], [6 x i32], [6 x i32], [7 x float], [7 x float], [8 x i8], [16 x i8] }, ptr @__ModuleStringPool, i32 0, i32 1
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; CHECK: %3 = getelementptr { [7 x double], [7 x double], [6 x i32], [6 x i32], [7 x float], [7 x float], [8 x i8], [16 x i8] }, ptr @__ModuleStringPool, i32 0, i32 7
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; CHECK: call signext i32 @calleeStr
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; CHECK: call signext i32 @calleeInt
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; CHECK: call signext i32 @calleeFloat
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; CHECK: call signext i32 @calleeDouble
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}
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attributes #0 = { nounwind }
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...
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