derek.holloway
7502bf64a4
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71 lines
3.2 KiB
LLVM
71 lines
3.2 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 4
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; RUN: opt < %s -data-layout="e-p:32:32:32-p1:16:16:16-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-n8:16:32" -passes=newgvn,dce -S | FileCheck %s
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; RUN: opt < %s -data-layout="E-p:32:32:32-p1:16:16:16-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:64:64-n32" -passes=newgvn,dce -S | FileCheck %s
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; memset -> i16 forwarding.
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define signext i16 @memset_to_i16_local(ptr %A) nounwind ssp {
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; CHECK-LABEL: define signext i16 @memset_to_i16_local(
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; CHECK-SAME: ptr [[A:%.*]]) #[[ATTR0:[0-9]+]] {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: tail call void @llvm.memset.p0.i64(ptr [[A]], i8 1, i64 200, i1 false)
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; CHECK-NEXT: ret i16 257
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;
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entry:
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tail call void @llvm.memset.p0.i64(ptr %A, i8 1, i64 200, i1 false)
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%arrayidx = getelementptr inbounds i16, ptr %A, i64 42
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%tmp2 = load i16, ptr %arrayidx
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ret i16 %tmp2
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}
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@GCst = constant {i32, float, i32 } { i32 42, float 14., i32 97 }
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@GCst_as1 = addrspace(1) constant {i32, float, i32 } { i32 42, float 14., i32 97 }
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; memset -> float forwarding.
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define float @memcpy_to_float_local(ptr %A) nounwind ssp {
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; CHECK-LABEL: define float @memcpy_to_float_local(
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; CHECK-SAME: ptr [[A:%.*]]) #[[ATTR0]] {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: tail call void @llvm.memcpy.p0.p0.i64(ptr [[A]], ptr @GCst, i64 12, i1 false)
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; CHECK-NEXT: ret float 1.400000e+01
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;
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entry:
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tail call void @llvm.memcpy.p0.p0.i64(ptr %A, ptr @GCst, i64 12, i1 false)
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%arrayidx = getelementptr inbounds float, ptr %A, i64 1 ; <ptr> [#uses=1]
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%tmp2 = load float, ptr %arrayidx ; <float> [#uses=1]
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ret float %tmp2
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}
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; memcpy from address space 1
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define float @memcpy_to_float_local_as1(ptr %A) nounwind ssp {
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; CHECK-LABEL: define float @memcpy_to_float_local_as1(
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; CHECK-SAME: ptr [[A:%.*]]) #[[ATTR0]] {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: tail call void @llvm.memcpy.p0.p1.i64(ptr [[A]], ptr addrspace(1) @GCst_as1, i64 12, i1 false)
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; CHECK-NEXT: ret float 1.400000e+01
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;
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entry:
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tail call void @llvm.memcpy.p0.p1.i64(ptr %A, ptr addrspace(1) @GCst_as1, i64 12, i1 false)
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%arrayidx = getelementptr inbounds float, ptr %A, i64 1 ; <ptr> [#uses=1]
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%tmp2 = load float, ptr %arrayidx ; <float> [#uses=1]
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ret float %tmp2
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}
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; PR6642
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define i32 @memset_to_load() nounwind readnone {
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; CHECK-LABEL: define i32 @memset_to_load(
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; CHECK-SAME: ) #[[ATTR1:[0-9]+]] {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[X:%.*]] = alloca [256 x i32], align 4
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; CHECK-NEXT: call void @llvm.memset.p0.i64(ptr align 4 [[X]], i8 0, i64 1024, i1 false)
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; CHECK-NEXT: ret i32 0
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;
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entry:
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%x = alloca [256 x i32], align 4 ; <ptr> [#uses=2]
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call void @llvm.memset.p0.i64(ptr align 4 %x, i8 0, i64 1024, i1 false)
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%arraydecay = getelementptr inbounds [256 x i32], ptr %x, i32 0, i32 0 ; <ptr>
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%tmp1 = load i32, ptr %arraydecay ; <i32> [#uses=1]
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ret i32 %tmp1
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}
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declare void @llvm.memset.p0.i64(ptr nocapture, i8, i64, i1) nounwind
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declare void @llvm.memcpy.p0.p0.i64(ptr nocapture, ptr nocapture, i64, i1) nounwind
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declare void @llvm.memcpy.p0.p1.i64(ptr nocapture, ptr addrspace(1) nocapture, i64, i1) nounwind
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