63 lines
1.8 KiB
LLVM
63 lines
1.8 KiB
LLVM
; RUN: llc < %s -mtriple thumbv7s-apple-darwin -asm-verbose=false | FileCheck %s
|
|
; RUN: llc < %s -mtriple thumbv7s-apple-darwin -asm-verbose=false -print-machineinstrs=if-converter 2>&1 | FileCheck --check-prefix=CHECK-WEIGHT %s
|
|
|
|
declare i32 @foo(i32)
|
|
declare i8* @bar(i32, i8*, i8*)
|
|
|
|
; Verify that we don't try to iteratively re-ifconvert a block with a
|
|
; (predicated) indirectbr terminator.
|
|
; If we do, we would ignore its fallthrough successor.
|
|
|
|
|
|
; CHECK-LABEL: test:
|
|
; CHECK: cmp {{.*}}, #21
|
|
; CHECK-NEXT: itt eq
|
|
; CHECK-NEXT: streq.w
|
|
; CHECK-NEXT: moveq pc
|
|
; CHECK-NEXT: LBB{{[0-9_]+}}:
|
|
; CHECK-NEXT: cmp {{.*}}, #42
|
|
; CHECK-NEXT: itt ne
|
|
; CHECK-NEXT: strne.w
|
|
; CHECK-NEXT: movne pc
|
|
; CHECK-NEXT: Ltmp
|
|
; CHECK-NEXT: LBB0_2:
|
|
; CHECK-NEXT: movw r0, #1234
|
|
; CHECK-NEXT: b [[FOOCALL:LBB[0-9_]+]]
|
|
; CHECK-NEXT: Ltmp
|
|
; CHECK-NEXT: LBB{{[0-9_]+}}:
|
|
; CHECK-NEXT: movw r0, #4567
|
|
; CHECK-NEXT: [[FOOCALL]]:
|
|
; CHECK-NEXT: blx _foo
|
|
;
|
|
; CHECK-WEIGHT: BB#0:
|
|
; CHECK-WEIGHT: Successors according to CFG: BB#1(16) BB#2(8) BB#4(8)
|
|
; CHECK-WEIGHT: BB#1:
|
|
; CHECK-WEIGHT: Successors according to CFG: BB#2(24) BB#4(8)
|
|
|
|
define i32 @test(i32 %a, i32 %a2, i32* %p, i32* %p2) {
|
|
entry:
|
|
%dst1 = call i8* @bar(i32 1, i8* blockaddress(@test, %bb1), i8* blockaddress(@test, %bb2))
|
|
%dst2 = call i8* @bar(i32 2, i8* blockaddress(@test, %bb1), i8* blockaddress(@test, %bb2))
|
|
%dst3 = call i8* @bar(i32 3, i8* blockaddress(@test, %bb1), i8* blockaddress(@test, %bb2))
|
|
%cc1 = icmp eq i32 %a, 21
|
|
br i1 %cc1, label %cc1t, label %cc1f
|
|
|
|
cc1t:
|
|
store i32 %a, i32* %p
|
|
indirectbr i8* %dst3, [label %bb1, label %bb2]
|
|
|
|
cc1f:
|
|
%cc2 = icmp ne i32 %a2, 42
|
|
br i1 %cc2, label %cc2t, label %bb1
|
|
cc2t:
|
|
store i32 %a, i32* %p2
|
|
indirectbr i8* %dst1, [label %bb1, label %bb2]
|
|
|
|
bb1:
|
|
%ret_bb1 = call i32 @foo(i32 1234)
|
|
ret i32 %ret_bb1
|
|
bb2:
|
|
%ret_bb2 = call i32 @foo(i32 4567)
|
|
ret i32 %ret_bb2
|
|
}
|