| ; RUN: llc -verify-machineinstrs -mcpu=pwr8 -ppc-asm-full-reg-names -ppc-vsr-nums-as-vr < %s -mtriple=ppc64-- | FileCheck %s -check-prefixes=PWR8-CHECK,CHECK |
| ; RUN: llc -verify-machineinstrs -mcpu=pwr9 -ppc-asm-full-reg-names -ppc-vsr-nums-as-vr < %s -mtriple=ppc64le-- | FileCheck %s -check-prefixes=PWR9-CHECK,CHECK |
| |
| define i32 @test1(i32 %a) { |
| %tmp.1 = mul nsw i32 %a, 16 ; <i32> [#uses=1] |
| ret i32 %tmp.1 |
| } |
| ; CHECK-LABEL: test1: |
| ; CHECK-NOT: mul |
| ; CHECK: slwi r[[REG1:[0-9]+]], r3, 4 |
| |
| define i32 @test2(i32 %a) { |
| %tmp.1 = mul nsw i32 %a, 17 ; <i32> [#uses=1] |
| ret i32 %tmp.1 |
| } |
| ; CHECK-LABEL: test2: |
| ; CHECK-NOT: mul |
| ; CHECK: slwi r[[REG1:[0-9]+]], r3, 4 |
| ; CHECK-NEXT: add r[[REG2:[0-9]+]], r3, r[[REG1]] |
| |
| define i32 @test3(i32 %a) { |
| %tmp.1 = mul nsw i32 %a, 15 ; <i32> [#uses=1] |
| ret i32 %tmp.1 |
| } |
| ; CHECK-LABEL: test3: |
| ; CHECK-NOT: mul |
| ; CHECK: slwi r[[REG1:[0-9]+]], r3, 4 |
| ; CHECK-NEXT: subf r[[REG2:[0-9]+]], r3, r[[REG1]] |
| |
| ; negtive constant |
| |
| define i32 @test4(i32 %a) { |
| %tmp.1 = mul nsw i32 %a, -16 ; <i32> [#uses=1] |
| ret i32 %tmp.1 |
| } |
| ; CHECK-LABEL: test4: |
| ; CHECK-NOT: mul |
| ; CHECK: slwi r[[REG1:[0-9]+]], r3, 4 |
| ; CHECK-NEXT: neg r[[REG2:[0-9]+]], r[[REG1]] |
| |
| define i32 @test5(i32 %a) { |
| %tmp.1 = mul nsw i32 %a, -17 ; <i32> [#uses=1] |
| ret i32 %tmp.1 |
| } |
| ; CHECK-LABEL: test5: |
| ; PWR9-CHECK: mulli r[[REG1:[0-9]+]], r3, -17 |
| ; PWR8-CHECK-NOT: mul |
| ; PWR8-CHECK: slwi r[[REG1:[0-9]+]], r3, 4 |
| ; PWR8-CHECK-NEXT: add r[[REG2:[0-9]+]], r3, r[[REG1]] |
| ; PWR8-CHECK-NEXT: neg r{{[0-9]+}}, r[[REG2]] |
| |
| define i32 @test6(i32 %a) { |
| %tmp.1 = mul nsw i32 %a, -15 ; <i32> [#uses=1] |
| ret i32 %tmp.1 |
| } |
| ; CHECK-LABEL: test6: |
| ; CHECK-NOT: mul |
| ; CHECK: slwi r[[REG1:[0-9]+]], r3, 4 |
| ; CHECK-NEXT: subf r[[REG2:[0-9]+]], r[[REG1]], r3 |
| ; CHECK-NOT: neg |
| |
| ; boundary case |
| |
| define i32 @test7(i32 %a) { |
| %tmp.1 = mul nsw i32 %a, -2147483648 ; <i32> [#uses=1] |
| ret i32 %tmp.1 |
| } |
| ; CHECK-LABEL: test7: |
| ; CHECK-NOT: mul |
| ; CHECK: slwi r[[REG1:[0-9]+]], r3, 31 |
| |
| define i32 @test8(i32 %a) { |
| %tmp.1 = mul nsw i32 %a, 2147483647 ; <i32> [#uses=1] |
| ret i32 %tmp.1 |
| } |
| ; CHECK-LABEL: test8: |
| ; CHECK-NOT: mul |
| ; CHECK: slwi r[[REG1:[0-9]+]], r3, 31 |
| ; CHECK-NEXT: subf r[[REG2:[0-9]+]], r3, r[[REG1]] |