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5541068ad3
only run for x86 with fastisel. I've found it being very effective in eliminating some obvious dead code as result of formal parameter lowering especially when tail call optimization eliminated the need for some of the loads from fixed frame objects. It also shrinks a number of the tests. A couple of tests no longer make sense and are now eliminated. llvm-svn: 95493
64 lines
1.4 KiB
LLVM
64 lines
1.4 KiB
LLVM
; RUN: llc < %s -march=x86 | FileCheck %s -check-prefix=32
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; RUN: llc < %s -march=x86-64 | FileCheck %s -check-prefix=64
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; rdar://7573216
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; PR6146
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define i32 @t1(i32 %x) nounwind readnone ssp {
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entry:
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; 32: t1:
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; 32: cmpl $1
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; 32: sbbl
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; 64: t1:
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; 64: cmpl $1
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; 64: sbbl
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%0 = icmp eq i32 %x, 0
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%iftmp.0.0 = select i1 %0, i32 -1, i32 0
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ret i32 %iftmp.0.0
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}
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define i32 @t2(i32 %x) nounwind readnone ssp {
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entry:
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; 32: t2:
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; 32: cmpl $1
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; 32: sbbl
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; 64: t2:
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; 64: cmpl $1
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; 64: sbbl
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%0 = icmp eq i32 %x, 0
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%iftmp.0.0 = sext i1 %0 to i32
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ret i32 %iftmp.0.0
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}
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%struct.zbookmark = type { i64, i64 }
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%struct.zstream = type { }
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define i32 @t3() nounwind readonly {
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entry:
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; 32: t3:
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; 32: cmpl $1
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; 32: sbbl
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; 32: cmpl
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; 32: xorl
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; 64: t3:
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; 64: cmpl $1
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; 64: sbbq
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; 64: cmpq
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; 64: xorl
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%not.tobool = icmp eq i32 undef, 0 ; <i1> [#uses=2]
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%cond = sext i1 %not.tobool to i32 ; <i32> [#uses=1]
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%conv = sext i1 %not.tobool to i64 ; <i64> [#uses=1]
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%add13 = add i64 0, %conv ; <i64> [#uses=1]
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%cmp = icmp ult i64 undef, %add13 ; <i1> [#uses=1]
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br i1 %cmp, label %if.then, label %if.end
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if.then: ; preds = %entry
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br label %if.end
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if.end: ; preds = %if.then, %entry
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%xor27 = xor i32 undef, %cond ; <i32> [#uses=0]
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ret i32 0
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}
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