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096ba9c487
In the case of a conditional branch without a preceding cmp we used to emit a "and; cmp; b.eq/b.ne" sequence, use tbz/tbnz instead. Differential Revision: http://reviews.llvm.org/D15122 llvm-svn: 254621
20 lines
490 B
LLVM
20 lines
490 B
LLVM
; RUN: llc -mtriple=aarch64-apple-darwin -O0 -fast-isel -fast-isel-abort=0 -verify-machineinstrs < %s | FileCheck %s
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define void @test(i64 %a, i64 %b, i2* %c) {
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; CHECK-LABEL: test
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; CHECK: and [[REG1:w[0-9]+]], w8, #0x3
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; CHECK-NEXT: strb [[REG1]], {{\[}}x2{{\]}}
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; CHECK-NEXT: tbz w9, #0,
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%1 = trunc i64 %a to i2
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%2 = trunc i64 %b to i1
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; Force fast-isel to fall back to SDAG.
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store i2 %1, i2* %c, align 8
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br i1 %2, label %bb1, label %bb2
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bb1:
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ret void
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bb2:
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ret void
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}
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