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66 lines
1.9 KiB
LLVM
66 lines
1.9 KiB
LLVM
; Test that the inliner doesn't leave around dead allocas, and that it folds
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; uncond branches away after it is done specializing.
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; RUN: llvm-upgrade < %s | llvm-as | opt -inline -disable-output &&
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; RUN: llvm-upgrade < %s | llvm-as | opt -inline | llvm-dis | not grep 'alloca.*uses=0' &&
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; RUN: llvm-upgrade < %s | llvm-as | opt -inline | llvm-dis | not grep 'br label'
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%A = weak global int 0 ; <int*> [#uses=1]
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%B = weak global int 0 ; <int*> [#uses=1]
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%C = weak global int 0 ; <int*> [#uses=1]
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implementation ; Functions:
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internal fastcc void %foo(int %X) {
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entry:
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%ALL = alloca int, align 4 ; <int*> [#uses=1]
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%tmp1 = and int %X, 1 ; <int> [#uses=1]
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%tmp1 = seteq int %tmp1, 0 ; <bool> [#uses=1]
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br bool %tmp1, label %cond_next, label %cond_true
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cond_true: ; preds = %entry
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store int 1, int* %A
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br label %cond_next
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cond_next: ; preds = %entry, %cond_true
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%tmp4 = and int %X, 2 ; <int> [#uses=1]
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%tmp4 = seteq int %tmp4, 0 ; <bool> [#uses=1]
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br bool %tmp4, label %cond_next7, label %cond_true5
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cond_true5: ; preds = %cond_next
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store int 1, int* %B
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br label %cond_next7
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cond_next7: ; preds = %cond_next, %cond_true5
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%tmp10 = and int %X, 4 ; <int> [#uses=1]
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%tmp10 = seteq int %tmp10, 0 ; <bool> [#uses=1]
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br bool %tmp10, label %cond_next13, label %cond_true11
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cond_true11: ; preds = %cond_next7
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store int 1, int* %C
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br label %cond_next13
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cond_next13: ; preds = %cond_next7, %cond_true11
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%tmp16 = and int %X, 8 ; <int> [#uses=1]
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%tmp16 = seteq int %tmp16, 0 ; <bool> [#uses=1]
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br bool %tmp16, label %UnifiedReturnBlock, label %cond_true17
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cond_true17: ; preds = %cond_next13
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call void %ext( int* %ALL )
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ret void
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UnifiedReturnBlock: ; preds = %cond_next13
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ret void
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}
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declare void %ext(int*)
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void %test() {
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entry:
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tail call fastcc void %foo( int 1 )
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tail call fastcc void %foo( int 2 )
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tail call fastcc void %foo( int 3 )
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tail call fastcc void %foo( int 8 )
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ret void
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}
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