| ; RUN: opt < %s -passes=gvn -S | FileCheck %s |
| ; |
| |
| %0 = type { i64, i1 } |
| |
| define i64 @test1(i64 %a, i64 %b) nounwind ssp { |
| entry: |
| %uadd = tail call %0 @llvm.uadd.with.overflow.i64(i64 %a, i64 %b) |
| %uadd.0 = extractvalue %0 %uadd, 0 |
| %add1 = add i64 %a, %b |
| ret i64 %add1 |
| } |
| |
| ; CHECK-LABEL: @test1( |
| ; CHECK-NOT: add1 |
| ; CHECK: ret |
| |
| define i64 @test2(i64 %a, i64 %b) nounwind ssp { |
| entry: |
| %usub = tail call %0 @llvm.usub.with.overflow.i64(i64 %a, i64 %b) |
| %usub.0 = extractvalue %0 %usub, 0 |
| %sub1 = sub i64 %a, %b |
| ret i64 %sub1 |
| } |
| |
| ; CHECK-LABEL: @test2( |
| ; CHECK-NOT: sub1 |
| ; CHECK: ret |
| |
| define i64 @test3(i64 %a, i64 %b) nounwind ssp { |
| entry: |
| %umul = tail call %0 @llvm.umul.with.overflow.i64(i64 %a, i64 %b) |
| %umul.0 = extractvalue %0 %umul, 0 |
| %mul1 = mul i64 %a, %b |
| ret i64 %mul1 |
| } |
| |
| ; CHECK-LABEL: @test3( |
| ; CHECK-NOT: mul1 |
| ; CHECK: ret |
| |
| define i64 @test4(i64 %a, i64 %b) nounwind ssp { |
| entry: |
| %sadd = tail call %0 @llvm.sadd.with.overflow.i64(i64 %a, i64 %b) |
| %sadd.0 = extractvalue %0 %sadd, 0 |
| %add1 = add i64 %a, %b |
| ret i64 %add1 |
| } |
| |
| ; CHECK-LABEL: @test4( |
| ; CHECK-NOT: add1 |
| ; CHECK: ret |
| |
| define i64 @test5(i64 %a, i64 %b) nounwind ssp { |
| entry: |
| %ssub = tail call %0 @llvm.ssub.with.overflow.i64(i64 %a, i64 %b) |
| %ssub.0 = extractvalue %0 %ssub, 0 |
| %sub1 = sub i64 %a, %b |
| ret i64 %sub1 |
| } |
| |
| ; CHECK-LABEL: @test5( |
| ; CHECK-NOT: sub1 |
| ; CHECK: ret |
| |
| define i64 @test6(i64 %a, i64 %b) nounwind ssp { |
| entry: |
| %smul = tail call %0 @llvm.smul.with.overflow.i64(i64 %a, i64 %b) |
| %smul.0 = extractvalue %0 %smul, 0 |
| %mul1 = mul i64 %a, %b |
| ret i64 %mul1 |
| } |
| |
| ; CHECK-LABEL: @test6( |
| ; CHECK-NOT: mul1 |
| ; CHECK: ret |
| |
| declare void @exit(i32) noreturn |
| declare %0 @llvm.uadd.with.overflow.i64(i64, i64) nounwind readnone |
| declare %0 @llvm.usub.with.overflow.i64(i64, i64) nounwind readnone |
| declare %0 @llvm.umul.with.overflow.i64(i64, i64) nounwind readnone |
| declare %0 @llvm.sadd.with.overflow.i64(i64, i64) nounwind readnone |
| declare %0 @llvm.ssub.with.overflow.i64(i64, i64) nounwind readnone |
| declare %0 @llvm.smul.with.overflow.i64(i64, i64) nounwind readnone |
| |