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llvm-mirror/test/CodeGen/PowerPC/rlwimi3.ll
Matthias Braun b3a8585bc1 PowerPC: Do not use llc -march in tests.
`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
2017-08-01 22:20:41 +00:00

27 lines
1.2 KiB
LLVM

; REQUIRES: asserts
; RUN: llc -verify-machineinstrs < %s -mtriple=ppc32-- -stats 2>&1 | \
; RUN: grep "Number of machine instrs printed" | grep 12
define i16 @Trans16Bit(i32 %srcA, i32 %srcB, i32 %alpha) {
%tmp1 = shl i32 %srcA, 15 ; <i32> [#uses=1]
%tmp2 = and i32 %tmp1, 32505856 ; <i32> [#uses=1]
%tmp4 = and i32 %srcA, 31775 ; <i32> [#uses=1]
%tmp5 = or i32 %tmp2, %tmp4 ; <i32> [#uses=1]
%tmp7 = shl i32 %srcB, 15 ; <i32> [#uses=1]
%tmp8 = and i32 %tmp7, 32505856 ; <i32> [#uses=1]
%tmp10 = and i32 %srcB, 31775 ; <i32> [#uses=1]
%tmp11 = or i32 %tmp8, %tmp10 ; <i32> [#uses=1]
%tmp14 = mul i32 %tmp5, %alpha ; <i32> [#uses=1]
%tmp16 = sub i32 32, %alpha ; <i32> [#uses=1]
%tmp18 = mul i32 %tmp11, %tmp16 ; <i32> [#uses=1]
%tmp19 = add i32 %tmp18, %tmp14 ; <i32> [#uses=2]
%tmp21 = lshr i32 %tmp19, 5 ; <i32> [#uses=1]
%tmp21.upgrd.1 = trunc i32 %tmp21 to i16 ; <i16> [#uses=1]
%tmp = and i16 %tmp21.upgrd.1, 31775 ; <i16> [#uses=1]
%tmp23 = lshr i32 %tmp19, 20 ; <i32> [#uses=1]
%tmp23.upgrd.2 = trunc i32 %tmp23 to i16 ; <i16> [#uses=1]
%tmp24 = and i16 %tmp23.upgrd.2, 992 ; <i16> [#uses=1]
%tmp25 = or i16 %tmp, %tmp24 ; <i16> [#uses=1]
ret i16 %tmp25
}