mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-25 20:23:11 +01:00
95 lines
2.5 KiB
LLVM
95 lines
2.5 KiB
LLVM
; RUN: llc -mtriple=aarch64 -verify-machineinstrs < %s | FileCheck --check-prefix=CHECK --check-prefix=OPT %s
|
|
; RUN: llc -mtriple=aarch64 -verify-machineinstrs -O0 -fast-isel=0 -global-isel=false < %s | FileCheck --check-prefix=CHECK --check-prefix=NOOPT %s
|
|
|
|
declare void @foo()
|
|
|
|
; Check that the inverted or doesn't inhibit the splitting of the
|
|
; complex conditional into three branch instructions.
|
|
; CHECK-LABEL: test_and_not:
|
|
; CHECK: cbz w0, [[L:\.LBB[0-9_]+]]
|
|
; OPT: cmp w1, #2
|
|
; NOOPT: subs w{{[0-9]+}}, w{{[0-9]+}}, #2
|
|
; CHECK: b.lo [[L]]
|
|
; OPT: cmp w2, #2
|
|
; NOOPT: subs w{{[0-9]+}}, w{{[0-9]+}}, #2
|
|
; CHECK: b.hi [[L]]
|
|
define void @test_and_not(i32 %a, i32 %b, i32 %c) {
|
|
bb1:
|
|
%cmp1 = icmp ult i32 %a, 1
|
|
%cmp2 = icmp ult i32 %b, 2
|
|
%cmp3 = icmp ult i32 %c, 3
|
|
%or = or i1 %cmp1, %cmp2
|
|
%not.or = xor i1 %or, -1
|
|
%and = and i1 %not.or, %cmp3
|
|
br i1 %and, label %bb2, label %bb3
|
|
|
|
bb2:
|
|
ret void
|
|
|
|
bb3:
|
|
call void @foo()
|
|
ret void
|
|
}
|
|
|
|
; Check that non-canonicalized xor not is handled correctly by FindMergedConditions.
|
|
; CHECK-LABEL: test_and_not2:
|
|
; CHECK: cbz w0, [[L:\.LBB[0-9_]+]]
|
|
; OPT: cmp w1, #2
|
|
; NOOPT: subs w{{[0-9]+}}, w{{[0-9]+}}, #2
|
|
; CHECK: b.lo [[L]]
|
|
; OPT: cmp w2, #2
|
|
; NOOPT: subs w{{[0-9]+}}, w{{[0-9]+}}, #2
|
|
; CHECK: b.hi [[L]]
|
|
define void @test_and_not2(i32 %a, i32 %b, i32 %c) {
|
|
bb1:
|
|
%cmp1 = icmp ult i32 %a, 1
|
|
%cmp2 = icmp ult i32 %b, 2
|
|
%cmp3 = icmp ult i32 %c, 3
|
|
%or = or i1 %cmp1, %cmp2
|
|
%not.or = xor i1 -1, %or
|
|
%and = and i1 %not.or, %cmp3
|
|
br i1 %and, label %bb2, label %bb3
|
|
|
|
bb2:
|
|
ret void
|
|
|
|
bb3:
|
|
call void @foo()
|
|
ret void
|
|
}
|
|
|
|
; Check that cmps in different blocks are handled correctly by FindMergedConditions.
|
|
; CHECK-LABEL: test_cmp_other_block:
|
|
; OPT: cmp w{{[0-9]+}}, #0
|
|
; OPT: b.gt [[L:\.LBB[0-9_]+]]
|
|
; OPT: tbz w1, #0, [[L]]
|
|
;
|
|
; NOOPT: str w1, [sp, #[[SLOT2:[0-9]+]]]
|
|
; NOOPT: subs w{{[0-9]+}}, w{{[0-9]+}}, #0
|
|
; NOOPT: cset [[R1:w[0-9]+]], gt
|
|
; NOOPT: str [[R1]], [sp, #[[SLOT1:[0-9]+]]]
|
|
; NOOPT: b .LBB
|
|
; NOOPT: ldr [[R2:w[0-9]+]], [sp, #[[SLOT1]]]
|
|
; NOOPT: tbnz [[R2]], #0, [[L:\.LBB[0-9_]+]]
|
|
; NOOPT: ldr [[R3:w[0-9]+]], [sp, #[[SLOT2]]]
|
|
; NOOPT: tbz [[R3]], #0, [[L]]
|
|
define void @test_cmp_other_block(i32* %p, i1 %c) {
|
|
entry:
|
|
%l = load i32, i32* %p
|
|
%cmp = icmp sgt i32 %l, 0
|
|
br label %bb1
|
|
|
|
bb1:
|
|
%cmp.i = xor i1 %cmp, true
|
|
%or.cond1.i = and i1 %cmp.i, %c
|
|
br i1 %or.cond1.i, label %bb2, label %bb3
|
|
|
|
bb2:
|
|
ret void
|
|
|
|
bb3:
|
|
call void @foo()
|
|
ret void
|
|
}
|
|
|