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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
18 lines
647 B
LLVM
18 lines
647 B
LLVM
; All of these ands and shifts should be folded into rlwimi's
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; RUN: llc -verify-machineinstrs < %s -mtriple=ppc32-- -o %t
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; RUN: not grep mulhwu %t
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; RUN: not grep srawi %t
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; RUN: not grep add %t
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; RUN: grep mulhw %t | count 1
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define i32 @mulhs(i32 %a, i32 %b) nounwind {
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entry:
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%tmp.1 = sext i32 %a to i64 ; <i64> [#uses=1]
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%tmp.3 = sext i32 %b to i64 ; <i64> [#uses=1]
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%tmp.4 = mul i64 %tmp.3, %tmp.1 ; <i64> [#uses=1]
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%tmp.6 = lshr i64 %tmp.4, 32 ; <i64> [#uses=1]
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%tmp.7 = trunc i64 %tmp.6 to i32 ; <i32> [#uses=1]
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ret i32 %tmp.7
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}
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