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09ab09a461
This patch is not intended to change existing codegen behavior for any target. It just exposes the JumpIsExpensive setting on the command-line to allow for easier testing and emergency overrides. Also, change the existing regression test to use FileCheck, explicitly specify the jump-is-expensive option, and use more precise checks. Differential Revision: http://reviews.llvm.org/D10846 llvm-svn: 241179
29 lines
697 B
LLVM
29 lines
697 B
LLVM
; RUN: llc < %s -mtriple=i386-unknown-unknown -jump-is-expensive=0 | FileCheck %s --check-prefix=JUMP2
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; RUN: llc < %s -mtriple=i386-unknown-unknown -jump-is-expensive=1 | FileCheck %s --check-prefix=JUMP1
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define void @foo(i32 %X, i32 %Y, i32 %Z) nounwind {
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; JUMP2-LABEL: foo:
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; JUMP2-DAG: jl
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; JUMP2-DAG: je
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;
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; JUMP1-LABEL: foo:
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; JUMP1-DAG: sete
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; JUMP1-DAG: setl
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; JUMP1: orb
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; JUMP1: jne
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entry:
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%tmp1 = icmp eq i32 %X, 0
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%tmp3 = icmp slt i32 %Y, 5
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%tmp4 = or i1 %tmp3, %tmp1
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br i1 %tmp4, label %cond_true, label %UnifiedReturnBlock
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cond_true:
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%tmp5 = tail call i32 (...) @bar( )
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ret void
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UnifiedReturnBlock:
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ret void
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}
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declare i32 @bar(...)
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