| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 2 | |
| ; RUN: llc -verify-machineinstrs -ppc-asm-full-reg-names -mtriple=powerpc \ | |
| ; RUN: -mcpu=pwr7 < %s | FileCheck %s | |
| ; RUN: llc -verify-machineinstrs -ppc-asm-full-reg-names -mtriple=powerpc \ | |
| ; RUN: -mcpu=pwr8 < %s | FileCheck %s --check-prefix=PWR8 | |
| define void @foo(ptr %a, i32 %x) { | |
| ; CHECK-LABEL: foo: | |
| ; CHECK: # %bb.0: | |
| ; CHECK-NEXT: rlwinm r5, r3, 3, 27, 28 | |
| ; CHECK-NEXT: extsb r4, r4 | |
| ; CHECK-NEXT: li r6, 255 | |
| ; CHECK-NEXT: sync | |
| ; CHECK-NEXT: rlwinm r3, r3, 0, 0, 29 | |
| ; CHECK-NEXT: xori r5, r5, 24 | |
| ; CHECK-NEXT: slw r7, r4, r5 | |
| ; CHECK-NEXT: slw r6, r6, r5 | |
| ; CHECK-NEXT: and r7, r7, r6 | |
| ; CHECK-NEXT: .LBB0_1: | |
| ; CHECK-NEXT: lwarx r8, 0, r3 | |
| ; CHECK-NEXT: and r9, r8, r6 | |
| ; CHECK-NEXT: srw r9, r9, r5 | |
| ; CHECK-NEXT: extsb r9, r9 | |
| ; CHECK-NEXT: cmpw r9, r4 | |
| ; CHECK-NEXT: bgt cr0, .LBB0_3 | |
| ; CHECK-NEXT: # %bb.2: | |
| ; CHECK-NEXT: andc r8, r8, r6 | |
| ; CHECK-NEXT: or r8, r7, r8 | |
| ; CHECK-NEXT: stwcx. r8, 0, r3 | |
| ; CHECK-NEXT: bne- cr0, .LBB0_1 | |
| ; CHECK-NEXT: .LBB0_3: | |
| ; CHECK-NEXT: lwsync | |
| ; CHECK-NEXT: blr | |
| ; | |
| ; PWR8-LABEL: foo: | |
| ; PWR8: # %bb.0: | |
| ; PWR8-NEXT: sync | |
| ; PWR8-NEXT: extsb r4, r4 | |
| ; PWR8-NEXT: .LBB0_1: | |
| ; PWR8-NEXT: lbarx r5, 0, r3 | |
| ; PWR8-NEXT: extsb r5, r5 | |
| ; PWR8-NEXT: cmpw r5, r4 | |
| ; PWR8-NEXT: bgt cr0, .LBB0_3 | |
| ; PWR8-NEXT: # %bb.2: | |
| ; PWR8-NEXT: stbcx. r4, 0, r3 | |
| ; PWR8-NEXT: bne- cr0, .LBB0_1 | |
| ; PWR8-NEXT: .LBB0_3: | |
| ; PWR8-NEXT: lwsync | |
| ; PWR8-NEXT: blr | |
| %val = trunc i32 %x to i8 | |
| %1 = atomicrmw max ptr %a, i8 %val seq_cst | |
| ret void | |
| } |