80 lines
2.3 KiB
LLVM
80 lines
2.3 KiB
LLVM
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; 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
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; 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
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define i32 @test1(i32 %a) {
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%tmp.1 = mul nsw i32 %a, 16 ; <i32> [#uses=1]
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ret i32 %tmp.1
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}
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; CHECK-LABEL: test1:
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; CHECK-NOT: mul
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; CHECK: slwi r[[REG1:[0-9]+]], r3, 4
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define i32 @test2(i32 %a) {
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%tmp.1 = mul nsw i32 %a, 17 ; <i32> [#uses=1]
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ret i32 %tmp.1
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}
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; CHECK-LABEL: test2:
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; CHECK-NOT: mul
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; CHECK: slwi r[[REG1:[0-9]+]], r3, 4
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; CHECK-NEXT: add r[[REG2:[0-9]+]], r3, r[[REG1]]
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define i32 @test3(i32 %a) {
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%tmp.1 = mul nsw i32 %a, 15 ; <i32> [#uses=1]
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ret i32 %tmp.1
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}
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; CHECK-LABEL: test3:
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; CHECK-NOT: mul
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; CHECK: slwi r[[REG1:[0-9]+]], r3, 4
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; CHECK-NEXT: sub r[[REG2:[0-9]+]], r[[REG1]], r3
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; negtive constant
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define i32 @test4(i32 %a) {
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%tmp.1 = mul nsw i32 %a, -16 ; <i32> [#uses=1]
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ret i32 %tmp.1
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}
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; CHECK-LABEL: test4:
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; CHECK-NOT: mul
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; CHECK: slwi r[[REG1:[0-9]+]], r3, 4
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; CHECK-NEXT: neg r[[REG2:[0-9]+]], r[[REG1]]
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define i32 @test5(i32 %a) {
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%tmp.1 = mul nsw i32 %a, -17 ; <i32> [#uses=1]
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ret i32 %tmp.1
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}
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; CHECK-LABEL: test5:
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; PWR9-CHECK: mulli r[[REG1:[0-9]+]], r3, -17
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; PWR8-CHECK-NOT: mul
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; PWR8-CHECK: slwi r[[REG1:[0-9]+]], r3, 4
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; PWR8-CHECK-NEXT: add r[[REG2:[0-9]+]], r3, r[[REG1]]
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; PWR8-CHECK-NEXT: neg r{{[0-9]+}}, r[[REG2]]
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define i32 @test6(i32 %a) {
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%tmp.1 = mul nsw i32 %a, -15 ; <i32> [#uses=1]
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ret i32 %tmp.1
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}
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; CHECK-LABEL: test6:
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; CHECK-NOT: mul
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; CHECK: slwi r[[REG1:[0-9]+]], r3, 4
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; CHECK-NEXT: sub r[[REG2:[0-9]+]], r3, r[[REG1]]
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; CHECK-NOT: neg
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; boundary case
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define i32 @test7(i32 %a) {
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%tmp.1 = mul nsw i32 %a, -2147483648 ; <i32> [#uses=1]
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ret i32 %tmp.1
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}
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; CHECK-LABEL: test7:
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; CHECK-NOT: mul
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; CHECK: slwi r[[REG1:[0-9]+]], r3, 31
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define i32 @test8(i32 %a) {
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%tmp.1 = mul nsw i32 %a, 2147483647 ; <i32> [#uses=1]
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ret i32 %tmp.1
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}
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; CHECK-LABEL: test8:
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; CHECK-NOT: mul
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; CHECK: slwi r[[REG1:[0-9]+]], r3, 31
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; CHECK-NEXT: sub r[[REG2:[0-9]+]], r[[REG1]], r3
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