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https://github.com/c64scene-ar/llvm-6502.git
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68afa54033
Most changes are cleanup, but there is 1 correctness fix: I fixed InstCombine so that the icmp is removed only if the malloc call is removed (which requires explicit removal because the Worklist won't DCE any calls since they can have side-effects). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84772 91177308-0d34-0410-b5e6-96231b3b80d8
23 lines
796 B
LLVM
23 lines
796 B
LLVM
; RUN: opt < %s -instcombine -S | FileCheck %s
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; PR1313
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define i32 @test1(i32 %argc, i8* %argv, i8* %envp) {
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%tmp15.i.i.i23 = malloc [2564 x i32] ; <[2564 x i32]*> [#uses=1]
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; CHECK-NOT: call i8* @malloc
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%c = icmp eq [2564 x i32]* %tmp15.i.i.i23, null ; <i1>:0 [#uses=1]
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%retval = zext i1 %c to i32 ; <i32> [#uses=1]
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ret i32 %retval
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; CHECK: ret i32 0
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}
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define i32 @test2(i32 %argc, i8* %argv, i8* %envp) {
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%tmp15.i.i.i23 = malloc [2564 x i32] ; <[2564 x i32]*> [#uses=1]
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; CHECK-NOT: call i8* @malloc
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%X = bitcast [2564 x i32]* %tmp15.i.i.i23 to i32*
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%c = icmp ne i32* %X, null
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%retval = zext i1 %c to i32 ; <i32> [#uses=1]
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ret i32 %retval
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; CHECK: ret i32 1
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}
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