llvm-mirror/test/CodeGen/X86/nobt.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

71 lines
1.6 KiB
LLVM

; RUN: llc < %s -mtriple=i686-- | not grep btl
; This tests some cases where BT must not be generated. See also bt.ll.
; Fixes 20040709-[12].c in gcc testsuite.
define void @test2(i32 %x, i32 %n) nounwind {
entry:
%tmp1 = and i32 %x, 1
%tmp2 = urem i32 %tmp1, 15
%tmp3 = and i32 %tmp2, 1 ; <i32> [#uses=1]
%tmp4 = icmp eq i32 %tmp3, %tmp2 ; <i1> [#uses=1]
br i1 %tmp4, label %bb, label %UnifiedReturnBlock
bb: ; preds = %entry
call void @foo()
ret void
UnifiedReturnBlock: ; preds = %entry
ret void
}
define void @test3(i32 %x, i32 %n) nounwind {
entry:
%tmp1 = and i32 %x, 1
%tmp2 = urem i32 %tmp1, 15
%tmp3 = and i32 %tmp2, 1 ; <i32> [#uses=1]
%tmp4 = icmp eq i32 %tmp2, %tmp3 ; <i1> [#uses=1]
br i1 %tmp4, label %bb, label %UnifiedReturnBlock
bb: ; preds = %entry
call void @foo()
ret void
UnifiedReturnBlock: ; preds = %entry
ret void
}
define void @test4(i32 %x, i32 %n) nounwind {
entry:
%tmp1 = and i32 %x, 1
%tmp2 = urem i32 %tmp1, 15
%tmp3 = and i32 %tmp2, 1 ; <i32> [#uses=1]
%tmp4 = icmp ne i32 %tmp2, %tmp3 ; <i1> [#uses=1]
br i1 %tmp4, label %bb, label %UnifiedReturnBlock
bb: ; preds = %entry
call void @foo()
ret void
UnifiedReturnBlock: ; preds = %entry
ret void
}
define void @test5(i32 %x, i32 %n) nounwind {
entry:
%tmp1 = and i32 %x, 1
%tmp2 = urem i32 %tmp1, 15
%tmp3 = and i32 %tmp2, 1 ; <i32> [#uses=1]
%tmp4 = icmp ne i32 %tmp2, %tmp3 ; <i1> [#uses=1]
br i1 %tmp4, label %bb, label %UnifiedReturnBlock
bb: ; preds = %entry
call void @foo()
ret void
UnifiedReturnBlock: ; preds = %entry
ret void
}
declare void @foo()