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llvm-mirror/test/CodeGen/PowerPC/rotl.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

40 lines
1.2 KiB
LLVM

; RUN: llc -verify-machineinstrs < %s -mtriple=ppc32-- | grep rotrw: | count 1
; RUN: llc -verify-machineinstrs < %s -mtriple=ppc32-- | grep rotlw: | count 1
; RUN: llc -verify-machineinstrs < %s -mtriple=ppc32-- | grep rotlwi: | count 1
; RUN: llc -verify-machineinstrs < %s -mtriple=ppc32-- | grep rotrwi: | count 1
define i32 @rotlw(i32 %x, i32 %sh) {
entry:
%tmp.7 = sub i32 32, %sh ; <i32> [#uses=1]
%tmp.10 = lshr i32 %x, %tmp.7 ; <i32> [#uses=2]
%tmp.4 = shl i32 %x, %sh ; <i32> [#uses=1]
%tmp.12 = or i32 %tmp.10, %tmp.4 ; <i32> [#uses=1]
ret i32 %tmp.12
}
define i32 @rotrw(i32 %x, i32 %sh) {
entry:
%tmp.3 = trunc i32 %sh to i8 ; <i8> [#uses=1]
%tmp.4 = lshr i32 %x, %sh ; <i32> [#uses=2]
%tmp.7 = sub i32 32, %sh ; <i32> [#uses=1]
%tmp.10 = shl i32 %x, %tmp.7 ; <i32> [#uses=1]
%tmp.12 = or i32 %tmp.4, %tmp.10 ; <i32> [#uses=1]
ret i32 %tmp.12
}
define i32 @rotlwi(i32 %x) {
entry:
%tmp.7 = lshr i32 %x, 27 ; <i32> [#uses=2]
%tmp.3 = shl i32 %x, 5 ; <i32> [#uses=1]
%tmp.9 = or i32 %tmp.3, %tmp.7 ; <i32> [#uses=1]
ret i32 %tmp.9
}
define i32 @rotrwi(i32 %x) {
entry:
%tmp.3 = lshr i32 %x, 5 ; <i32> [#uses=2]
%tmp.7 = shl i32 %x, 27 ; <i32> [#uses=1]
%tmp.9 = or i32 %tmp.3, %tmp.7 ; <i32> [#uses=1]
ret i32 %tmp.9
}