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

19 lines
745 B
LLVM

; This test should not contain a sign extend
; RUN: llc -verify-machineinstrs < %s -mtriple=ppc32-- | not grep extsb
define i32 @test(i32 %mode.0.i.0) {
%tmp.79 = trunc i32 %mode.0.i.0 to i8 ; <i8> [#uses=1]
%tmp.80 = sext i8 %tmp.79 to i32 ; <i32> [#uses=1]
%tmp.81 = shl i32 %tmp.80, 24 ; <i32> [#uses=1]
ret i32 %tmp.81
}
define i32 @test2(i32 %mode.0.i.0) {
%tmp.79 = trunc i32 %mode.0.i.0 to i8 ; <i8> [#uses=1]
%tmp.80 = sext i8 %tmp.79 to i32 ; <i32> [#uses=1]
%tmp.81 = shl i32 %tmp.80, 16 ; <i32> [#uses=1]
%tmp.82 = and i32 %tmp.81, 16711680 ; <i32> [#uses=1]
ret i32 %tmp.82
}