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| ; 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
}
|