forked from OSchip/llvm-project
59 lines
1.3 KiB
LLVM
59 lines
1.3 KiB
LLVM
; RUN: llc -mtriple=sparc-none-linux-gnu < %s | FileCheck %s
|
|
|
|
; This test checks that LLVM can do basic stripping and reapplying of branches
|
|
; to basic blocks.
|
|
|
|
declare void @test_true()
|
|
declare void @test_false()
|
|
|
|
; !0 corresponds to a branch being taken, !1 to not being takne.
|
|
!0 = !{!"branch_weights", i32 64, i32 4}
|
|
!1 = !{!"branch_weights", i32 4, i32 64}
|
|
|
|
define void @test_Bcc_fallthrough_taken(i32 %in) nounwind {
|
|
; CHECK-LABEL: test_Bcc_fallthrough_taken:
|
|
%tst = icmp eq i32 %in, 42
|
|
br i1 %tst, label %true, label %false, !prof !0
|
|
|
|
; CHECK: cmp {{%[goli][0-9]+}}, 42
|
|
; CHECK: bne [[FALSE:.LBB[0-9]+_[0-9]+]]
|
|
; CHECK-NEXT: nop
|
|
; CHECK-NEXT: ! %bb.
|
|
; CHECK-NEXT: call test_true
|
|
|
|
; CHECK: [[FALSE]]:
|
|
; CHECK: call test_false
|
|
|
|
true:
|
|
call void @test_true()
|
|
ret void
|
|
|
|
false:
|
|
call void @test_false()
|
|
ret void
|
|
}
|
|
|
|
define void @test_Bcc_fallthrough_nottaken(i32 %in) nounwind {
|
|
; CHECK-LABEL: test_Bcc_fallthrough_nottaken:
|
|
%tst = icmp eq i32 %in, 42
|
|
br i1 %tst, label %true, label %false, !prof !1
|
|
|
|
; CHECK: cmp {{%[goli][0-9]+}}, 42
|
|
|
|
; CHECK: be [[TRUE:.LBB[0-9]+_[0-9]+]]
|
|
; CHECK-NEXT: nop
|
|
; CHECK-NEXT: ! %bb.
|
|
; CHECK-NEXT: call test_false
|
|
|
|
; CHECK: [[TRUE]]:
|
|
; CHECK: call test_true
|
|
|
|
true:
|
|
call void @test_true()
|
|
ret void
|
|
|
|
false:
|
|
call void @test_false()
|
|
ret void
|
|
}
|