67 lines
1.6 KiB
LLVM
67 lines
1.6 KiB
LLVM
; Test that the strcpy library call simplifier works correctly for ARM procedure calls
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; RUN: opt < %s -passes=instcombine -S | FileCheck %s
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;
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; This transformation requires the pointer size, as it assumes that size_t is
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; the size of a pointer.
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target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64"
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@hello = constant [6 x i8] c"hello\00"
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@a = common global [32 x i8] zeroinitializer, align 1
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@b = common global [32 x i8] zeroinitializer, align 1
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declare ptr @strcpy(ptr, ptr)
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define arm_aapcscc void @test_simplify1() {
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; CHECK-LABEL: @test_simplify1(
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call arm_aapcscc ptr @strcpy(ptr @a, ptr @hello)
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; CHECK: @llvm.memcpy.p0.p0.i32
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ret void
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}
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define arm_aapcscc ptr @test_simplify2() {
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; CHECK-LABEL: @test_simplify2(
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%ret = call arm_aapcscc ptr @strcpy(ptr @a, ptr @a)
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; CHECK: ret ptr @a
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ret ptr %ret
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}
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define arm_aapcscc ptr @test_no_simplify1() {
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; CHECK-LABEL: @test_no_simplify1(
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%ret = call arm_aapcscc ptr @strcpy(ptr @a, ptr @b)
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; CHECK: call arm_aapcscc ptr @strcpy
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ret ptr %ret
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}
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define arm_aapcs_vfpcc void @test_simplify1_vfp() {
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; CHECK-LABEL: @test_simplify1_vfp(
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call arm_aapcs_vfpcc ptr @strcpy(ptr @a, ptr @hello)
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; CHECK: @llvm.memcpy.p0.p0.i32
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ret void
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}
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define arm_aapcs_vfpcc ptr @test_simplify2_vfp() {
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; CHECK-LABEL: @test_simplify2_vfp(
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%ret = call arm_aapcs_vfpcc ptr @strcpy(ptr @a, ptr @a)
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; CHECK: ret ptr @a
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ret ptr %ret
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}
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define arm_aapcs_vfpcc ptr @test_no_simplify1_vfp() {
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; CHECK-LABEL: @test_no_simplify1_vfp(
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%ret = call arm_aapcs_vfpcc ptr @strcpy(ptr @a, ptr @b)
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; CHECK: call arm_aapcs_vfpcc ptr @strcpy
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ret ptr %ret
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}
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