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

26 lines
588 B
LLVM

; All of these should be codegen'd without loading immediates
; RUN: llc -verify-machineinstrs < %s -mtriple=ppc32-- -o %t
; RUN: grep subfc %t | count 1
; RUN: grep subfe %t | count 1
; RUN: grep subfze %t | count 1
; RUN: grep subfme %t | count 1
; RUN: grep subfic %t | count 2
define i64 @sub_ll(i64 %a, i64 %b) {
entry:
%tmp.2 = sub i64 %a, %b ; <i64> [#uses=1]
ret i64 %tmp.2
}
define i64 @sub_l_5(i64 %a) {
entry:
%tmp.1 = sub i64 5, %a ; <i64> [#uses=1]
ret i64 %tmp.1
}
define i64 @sub_l_m5(i64 %a) {
entry:
%tmp.1 = sub i64 -5, %a ; <i64> [#uses=1]
ret i64 %tmp.1
}