d0f9553ef5
This patch basically enables fast-isel for AIX 64-bit subtarget (previously enabled only for ELF 64). The initial motivation is to introduce branch folding to AIX generated code for correct debug behavior. I also saw some compiling time improvement in a few LLVM test-suite benchmarks. (toast, dbms, cjpeg, burg, etc.) Reviewed By: jsji Differential Revision: https://reviews.llvm.org/D98844
29 lines
634 B
LLVM
29 lines
634 B
LLVM
; RUN: llc < %s -O0 -verify-machineinstrs -fast-isel-abort=1 -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr7 | FileCheck %s --check-prefix=PPC64
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; RUN: llc < %s -O0 -verify-machineinstrs -fast-isel-abort=1 -mtriple=powerpc64-ibm-aix-xcoff -mcpu=pwr7 | FileCheck %s --check-prefix=PPC64
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define zeroext i1 @testi1(i8 %in) nounwind {
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entry:
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%c = icmp eq i8 %in, 5
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br i1 %c, label %true, label %false
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; PPC64-LABEL: @testi1
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true:
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br label %end
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; PPC64-NOT: li {{[0-9]+}}, -1
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; PPC64: li {{[0-9]+}}, 1
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false:
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br label %end
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; PPC64: li {{[0-9]+}}, 0
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end:
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%r = phi i1 [ 0, %false], [ 1, %true ]
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ret i1 %r
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; PPC64: blr
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}
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