; RUN: opt -S < %s -instcombine | FileCheck %s
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target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-f80:128:128-v64:64:64-v128:128:128-a0:0:64-f80:32:32-n8:16:32-S32"
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@G = constant [3 x i8] c"%s\00" ; <[3 x i8]*> [#uses=1]
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declare i32 @sprintf(i8*, i8*, ...)
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define void @foo(i8* %P, i32* %X) {
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call i32 (i8*, i8*, ...) @sprintf( i8* %P, i8* getelementptr ([3 x i8], [3 x i8]* @G, i32 0, i32 0), i32* %X ) ; <i32>:1 [#uses=0]
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ret void
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}
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; PR1307
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@str = internal constant [5 x i8] c"foog\00"
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@str1 = internal constant [8 x i8] c"blahhh!\00"
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@str2 = internal constant [5 x i8] c"Ponk\00"
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define i8* @test1() {
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%tmp3 = tail call i8* @strchr( i8* getelementptr ([5 x i8], [5 x i8]* @str, i32 0, i32 2), i32 103 ) ; <i8*> [#uses=1]
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ret i8* %tmp3
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; CHECK-LABEL: @test1(
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; CHECK: ret i8* getelementptr inbounds ([5 x i8], [5 x i8]* @str, i32 0, i32 3)
|
}
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|
declare i8* @strchr(i8*, i32)
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define i8* @test2() {
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%tmp3 = tail call i8* @strchr( i8* getelementptr ([8 x i8], [8 x i8]* @str1, i32 0, i32 2), i32 0 ) ; <i8*> [#uses=1]
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ret i8* %tmp3
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|
; CHECK-LABEL: @test2(
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; CHECK: ret i8* getelementptr inbounds ([8 x i8], [8 x i8]* @str1, i32 0, i32 7)
|
}
|
|
define i8* @test3() {
|
entry:
|
%tmp3 = tail call i8* @strchr( i8* getelementptr ([5 x i8], [5 x i8]* @str2, i32 0, i32 1), i32 80 ) ; <i8*> [#uses=1]
|
ret i8* %tmp3
|
|
; CHECK-LABEL: @test3(
|
; CHECK: ret i8* null
|
}
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|
@_2E_str = external constant [5 x i8] ; <[5 x i8]*> [#uses=1]
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|
declare i32 @memcmp(i8*, i8*, i32) nounwind readonly
|
|
define i1 @PR2341(i8** %start_addr) {
|
entry:
|
%tmp4 = load i8*, i8** %start_addr, align 4 ; <i8*> [#uses=1]
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%tmp5 = call i32 @memcmp( i8* %tmp4, i8* getelementptr ([5 x i8], [5 x i8]* @_2E_str, i32 0, i32 0), i32 4 ) nounwind readonly ; <i32> [#uses=1]
|
%tmp6 = icmp eq i32 %tmp5, 0 ; <i1> [#uses=1]
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ret i1 %tmp6
|
|
; CHECK-LABEL: @PR2341(
|
; CHECK: i32
|
}
|
|
define i32 @PR4284() nounwind {
|
entry:
|
%c0 = alloca i8, align 1 ; <i8*> [#uses=2]
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%c2 = alloca i8, align 1 ; <i8*> [#uses=2]
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store i8 64, i8* %c0
|
store i8 -127, i8* %c2
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%call = call i32 @memcmp(i8* %c0, i8* %c2, i32 1) ; <i32> [#uses=1]
|
ret i32 %call
|
|
; CHECK-LABEL: @PR4284(
|
; CHECK: ret i32 -65
|
}
|
|
%struct.__sFILE = type { i8*, i32, i32, i16, i16, %struct.__sbuf, i32, i8*, i32 (i8*)*, i32 (i8*, i8*, i32)*, i64 (i8*, i64, i32)*, i32 (i8*, i8*, i32)*, %struct.__sbuf, i8*, i32, [3 x i8], [1 x i8], %struct.__sbuf, i32, i64, %struct.pthread_mutex*, %struct.pthread*, i32, i32, %union.anon }
|
%struct.__sbuf = type { i8*, i32, [4 x i8] }
|
%struct.pthread = type opaque
|
%struct.pthread_mutex = type opaque
|
%union.anon = type { i64, [120 x i8] }
|
@.str13 = external constant [2 x i8] ; <[2 x i8]*> [#uses=1]
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@.str14 = external constant [2 x i8] ; <[2 x i8]*> [#uses=1]
|
|
define i32 @PR4641(i32 %argc, i8** %argv) nounwind {
|
entry:
|
call void @exit(i32 0) nounwind
|
%cond392 = select i1 undef, i8* getelementptr ([2 x i8], [2 x i8]* @.str13, i32 0, i32 0), i8* getelementptr ([2 x i8], [2 x i8]* @.str14, i32 0, i32 0) ; <i8*> [#uses=1]
|
%call393 = call %struct.__sFILE* @fopen(i8* undef, i8* %cond392) nounwind ; <%struct.__sFILE*> [#uses=0]
|
unreachable
|
}
|
|
declare %struct.__sFILE* @fopen(i8*, i8*)
|
|
declare void @exit(i32)
|
|
define i32 @PR4645() {
|
entry:
|
br label %if.then
|
|
lor.lhs.false: ; preds = %while.body
|
br i1 undef, label %if.then, label %for.cond
|
|
if.then: ; preds = %lor.lhs.false, %while.body
|
call void @exit(i32 1)
|
br label %for.cond
|
|
for.cond: ; preds = %for.end, %if.then, %lor.lhs.false
|
%j.0 = phi i32 [ %inc47, %for.end ], [ 0, %if.then ], [ 0, %lor.lhs.false ] ; <i32> [#uses=1]
|
unreachable
|
|
for.end: ; preds = %for.cond20
|
%inc47 = add i32 %j.0, 1 ; <i32> [#uses=1]
|
br label %for.cond
|
}
|
|
@h = constant [2 x i8] c"h\00" ; <[2 x i8]*> [#uses=1]
|
@hel = constant [4 x i8] c"hel\00" ; <[4 x i8]*> [#uses=1]
|
@hello_u = constant [8 x i8] c"hello_u\00" ; <[8 x i8]*> [#uses=1]
|
|
define i32 @MemCpy() {
|
%h_p = getelementptr [2 x i8], [2 x i8]* @h, i32 0, i32 0
|
%hel_p = getelementptr [4 x i8], [4 x i8]* @hel, i32 0, i32 0
|
%hello_u_p = getelementptr [8 x i8], [8 x i8]* @hello_u, i32 0, i32 0
|
%target = alloca [1024 x i8]
|
%target_p = getelementptr [1024 x i8], [1024 x i8]* %target, i32 0, i32 0
|
call void @llvm.memcpy.p0i8.p0i8.i32(i8* %target_p, i8* %h_p, i32 2, i32 2, i1 false)
|
call void @llvm.memcpy.p0i8.p0i8.i32(i8* %target_p, i8* %hel_p, i32 4, i32 4, i1 false)
|
call void @llvm.memcpy.p0i8.p0i8.i32(i8* %target_p, i8* %hello_u_p, i32 8, i32 8, i1 false)
|
ret i32 0
|
|
; CHECK-LABEL: @MemCpy(
|
; CHECK-NOT: llvm.memcpy
|
; CHECK: ret i32 0
|
}
|
|
declare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture, i8* nocapture, i32, i32, i1) nounwind
|
|
declare i32 @strcmp(i8*, i8*) #0
|
|
define void @test9(i8* %x) {
|
; CHECK-LABEL: @test9(
|
; CHECK-NOT: strcmp
|
%y = call i32 @strcmp(i8* %x, i8* %x) #1
|
ret void
|
}
|
|
attributes #0 = { nobuiltin }
|
attributes #1 = { builtin }
|
