; NOTE: Assertions have been autogenerated by utils/update_test_checks.py ; RUN: opt -O3 -S < %s | FileCheck %s ; RUN: opt -passes='default<O3>' -S < %s | FileCheck %s define void @foo(i1 %which, i32 %a, i32 %b, i64 *%result) { ; CHECK-LABEL: @foo( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[TMP0:%.*]] = sub i32 0, [[B:%.*]] ; CHECK-NEXT: [[Z_V_P:%.*]] = select i1 [[WHICH:%.*]], i32 [[B]], i32 [[TMP0]] ; CHECK-NEXT: [[Z_V:%.*]] = add i32 [[Z_V_P]], [[A:%.*]] ; CHECK-NEXT: [[Z:%.*]] = zext i32 [[Z_V]] to i64 ; CHECK-NEXT: [[C:%.*]] = load i64, i64* [[RESULT:%.*]], align 4 ; CHECK-NEXT: [[VALUE:%.*]] = add i64 [[C]], [[Z]] ; CHECK-NEXT: store i64 [[VALUE]], i64* [[RESULT]], align 4 ; CHECK-NEXT: ret void ; entry: %x = add i32 %a, %b %x2 = zext i32 %x to i64 br i1 %which, label %final, label %delay delay: %y = sub i32 %a, %b %y2 = zext i32 %y to i64 br label %final final: %z = phi i64 [ %x2, %entry ], [ %y2, %delay ] %c = load i64, i64* %result %value = add i64 %z, %c store i64 %value, i64* %result ret void } define void @bar(i1 %which, i32 %a, i32 %b, i64 *%result) { ; CHECK-LABEL: @bar( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[TMP0:%.*]] = sub i32 0, [[B:%.*]] ; CHECK-NEXT: [[SPEC_SELECT_P:%.*]] = select i1 [[WHICH:%.*]], i32 [[B]], i32 [[TMP0]] ; CHECK-NEXT: [[SPEC_SELECT:%.*]] = add i32 [[SPEC_SELECT_P]], [[A:%.*]] ; CHECK-NEXT: [[Z2:%.*]] = zext i32 [[SPEC_SELECT]] to i64 ; CHECK-NEXT: [[C:%.*]] = load i64, i64* [[RESULT:%.*]], align 4 ; CHECK-NEXT: [[VALUE:%.*]] = add i64 [[C]], [[Z2]] ; CHECK-NEXT: store i64 [[VALUE]], i64* [[RESULT]], align 4 ; CHECK-NEXT: ret void ; entry: %x = add i32 %a, %b br i1 %which, label %final, label %delay delay: %y = sub i32 %a, %b br label %final final: %z = phi i32 [ %x, %entry ], [ %y, %delay ] %z2 = zext i32 %z to i64 %c = load i64, i64* %result %value = add i64 %z2, %c store i64 %value, i64* %result ret void } define void @foo_opt(i1 %which, i32 %a, i32 %b, i64* nocapture %result) { ; CHECK-LABEL: @foo_opt( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[TMP0:%.*]] = sub i32 0, [[B:%.*]] ; CHECK-NEXT: [[Z_V_P:%.*]] = select i1 [[WHICH:%.*]], i32 [[B]], i32 [[TMP0]] ; CHECK-NEXT: [[Z_V:%.*]] = add i32 [[Z_V_P]], [[A:%.*]] ; CHECK-NEXT: [[Z:%.*]] = zext i32 [[Z_V]] to i64 ; CHECK-NEXT: [[C:%.*]] = load i64, i64* [[RESULT:%.*]], align 4 ; CHECK-NEXT: [[VALUE:%.*]] = add i64 [[C]], [[Z]] ; CHECK-NEXT: store i64 [[VALUE]], i64* [[RESULT]], align 4 ; CHECK-NEXT: ret void ; entry: %0 = sub i32 0, %b %z.v.p = select i1 %which, i32 %b, i32 %0 %z.v = add i32 %z.v.p, %a %z = zext i32 %z.v to i64 %c = load i64, i64* %result, align 4 %value = add i64 %c, %z store i64 %value, i64* %result, align 4 ret void }