llvm-mirror/test/CodeGen/X86/isel-optnone.ll
Matthias Braun f7935a3f63 X86: 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.

See also the discussion in https://reviews.llvm.org/D35287

llvm-svn: 309774
2017-08-02 00:28:10 +00:00

43 lines
942 B
LLVM

; RUN: llc -O2 -mtriple=i686-- < %s | FileCheck %s
define i32* @fooOptnone(i32* %p, i32* %q, i32** %z) #0 {
entry:
%r = load i32, i32* %p
%s = load i32, i32* %q
%y = load i32*, i32** %z
%t0 = add i32 %r, %s
%t1 = add i32 %t0, 1
%t2 = getelementptr i32, i32* %y, i32 1
%t3 = getelementptr i32, i32* %t2, i32 %t1
ret i32* %t3
; 'optnone' should use fast-isel which will not produce 'lea'.
; CHECK-LABEL: fooOptnone:
; CHECK-NOT: lea
; CHECK: ret
}
define i32* @fooNormal(i32* %p, i32* %q, i32** %z) #1 {
entry:
%r = load i32, i32* %p
%s = load i32, i32* %q
%y = load i32*, i32** %z
%t0 = add i32 %r, %s
%t1 = add i32 %t0, 1
%t2 = getelementptr i32, i32* %y, i32 1
%t3 = getelementptr i32, i32* %t2, i32 %t1
ret i32* %t3
; Normal ISel will produce 'lea'.
; CHECK-LABEL: fooNormal:
; CHECK: lea
; CHECK: ret
}
attributes #0 = { nounwind optnone noinline }
attributes #1 = { nounwind }