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b3a8585bc1
`llc -march` is problematic because it only switches the target architecture, but leaves the operating system unchanged. This occasionally leads to indeterministic tests because the OS from LLVM_DEFAULT_TARGET_TRIPLE is used. However we can simply always use `llc -mtriple` instead. This changes all the tests to do this to avoid people using -march when they copy and paste parts of tests. This patch: - Removes -march if the .ll file already has a matching `target triple` directive or -mtriple argument. - In all other cases changes -march=ppc32/-march=ppc64 to -mtriple=ppc32--/-mtriple=ppc64-- See also the discussion in https://reviews.llvm.org/D35287 llvm-svn: 309754
16 lines
441 B
LLVM
16 lines
441 B
LLVM
; RUN: llc -verify-machineinstrs < %s -mtriple=ppc32-- -o %t
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; RUN: grep slwi %t
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; RUN: not grep addi %t
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; RUN: not grep rlwinm %t
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define i32 @test(i32 %A) {
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;; shift
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%B = mul i32 %A, 8 ; <i32> [#uses=1]
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;; dead, no demanded bits.
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%C = add i32 %B, 7 ; <i32> [#uses=1]
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;; dead once add is gone.
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%D = and i32 %C, -8 ; <i32> [#uses=1]
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ret i32 %D
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}
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