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9386601a22
When choosing the best successor for a block, ordinarily we would have preferred a block that preserves the CFG unless there is a strong probability the other direction. For small blocks that can be duplicated we now skip that requirement as well, subject to some simple frequency calculations. Differential Revision: https://reviews.llvm.org/D28583 llvm-svn: 293716
21 lines
470 B
LLVM
21 lines
470 B
LLVM
; RUN: llc %s -march=mipsel -mattr=micromips -filetype=asm -O3 \
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; RUN: -disable-mips-delay-filler -relocation-model=pic -o - | FileCheck %s
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define void @main() nounwind uwtable {
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entry:
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%x = alloca i32, align 4
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%0 = load i32, i32* %x, align 4
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%cmp = icmp eq i32 %0, 0
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br i1 %cmp, label %if.then, label %if.end, !prof !1
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if.then:
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store i32 10, i32* %x, align 4
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br label %if.end
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if.end:
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ret void
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}
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; CHECK: bnezc
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!1 = !{!"branch_weights", i32 2, i32 1}
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