; RUN: llc -march=xcore < %s | FileCheck %s ; Only needs one ladd define i64 @f1(i32 %x, i32 %y) nounwind { entry: %0 = zext i32 %x to i64 ; [#uses=1] %1 = zext i32 %y to i64 ; [#uses=1] %2 = add i64 %1, %0 ; [#uses=1] ret i64 %2 } ; CHECK: f1: ; CHECK: ldc r2, 0 ; CHECK-NEXT: ladd r1, r0, r1, r0, r2 ; CHECK-NEXT: retsp 0 ; Only needs one lsub and one neg define i64 @f2(i32 %x, i32 %y) nounwind { entry: %0 = zext i32 %x to i64 ; [#uses=1] %1 = zext i32 %y to i64 ; [#uses=1] %2 = sub i64 %1, %0 ; [#uses=1] ret i64 %2 } ; CHECK: f2: ; CHECK: ldc r2, 0 ; CHECK-NEXT: lsub r1, r0, r1, r0, r2 ; CHECK-NEXT: neg r1, r1 ; CHECK-NEXT: retsp 0 ; Should compile to one ladd and one add define i64 @f3(i64 %x, i32 %y) nounwind { entry: %0 = zext i32 %y to i64 ; [#uses=1] %1 = add i64 %x, %0 ; [#uses=1] ret i64 %1 } ; CHECK: f3: ; CHECK: ldc r3, 0 ; CHECK-NEXT: ladd r2, r0, r0, r2, r3 ; CHECK-NEXT: add r1, r1, r2 ; CHECK-NEXT: retsp 0 ; Should compile to one ladd and one add define i64 @f4(i32 %x, i64 %y) nounwind { entry: %0 = zext i32 %x to i64 ; [#uses=1] %1 = add i64 %0, %y ; [#uses=1] ret i64 %1 } ; CHECK: f4: ; CHECK: ldc r3, 0 ; CHECK-NEXT: ladd r1, r0, r0, r1, r3 ; CHECK-NEXT: add r1, r2, r1 ; CHECK-NEXT: retsp 0 ; Should compile to one lsub and one sub define i64 @f5(i64 %x, i32 %y) nounwind { entry: %0 = zext i32 %y to i64 ; [#uses=1] %1 = sub i64 %x, %0 ; [#uses=1] ret i64 %1 } ; CHECK: f5: ; CHECK: ldc r3, 0 ; CHECK-NEXT: lsub r2, r0, r0, r2, r3 ; CHECK-NEXT: sub r1, r1, r2 ; CHECK-NEXT: retsp 0