| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py |
| ; RUN: llc < %s -mtriple=m68k-linux -verify-machineinstrs | FileCheck %s |
| |
| define zeroext i8 @smul_i8(i8 signext %a, i8 signext %b) nounwind ssp { |
| ; CHECK-LABEL: smul_i8: |
| ; CHECK: ; %bb.0: ; %entry |
| ; CHECK-NEXT: move.b (11,%sp), %d0 |
| ; CHECK-NEXT: and.l #255, %d0 |
| ; CHECK-NEXT: move.b (7,%sp), %d1 |
| ; CHECK-NEXT: and.l #255, %d1 |
| ; CHECK-NEXT: muls %d0, %d1 |
| ; CHECK-NEXT: move.l %d1, %d0 |
| ; CHECK-NEXT: and.l #65535, %d0 |
| ; CHECK-NEXT: and.l #255, %d0 |
| ; CHECK-NEXT: rts |
| entry: |
| %smul = tail call { i8, i1 } @llvm.smul.with.overflow.i8(i8 %a, i8 %b) |
| %cmp = extractvalue { i8, i1 } %smul, 1 |
| %smul.result = extractvalue { i8, i1 } %smul, 0 |
| %X = select i1 %cmp, i8 42, i8 %smul.result |
| ret i8 %X |
| } |
| |
| define zeroext i8 @smul_i8_no_ovf(i8 signext %a, i8 signext %b) nounwind ssp { |
| ; CHECK-LABEL: smul_i8_no_ovf: |
| ; CHECK: ; %bb.0: ; %entry |
| ; CHECK-NEXT: moveq #42, %d0 |
| ; CHECK-NEXT: rts |
| entry: |
| %smul = tail call { i8, i1 } @llvm.smul.with.overflow.i8(i8 %a, i8 %b) |
| %cmp = extractvalue { i8, i1 } %smul, 1 |
| %smul.result = extractvalue { i8, i1 } %smul, 0 |
| %X = select i1 %cmp, i8 %smul.result, i8 42 |
| ret i8 %X |
| } |
| |
| declare { i8, i1 } @llvm.smul.with.overflow.i8(i8, i8) nounwind readnone |
| |
| define zeroext i16 @smul_i16(i16 signext %a, i16 signext %b) nounwind ssp { |
| ; CHECK-LABEL: smul_i16: |
| ; CHECK: ; %bb.0: ; %entry |
| ; CHECK-NEXT: move.w (6,%sp), %d0 |
| ; CHECK-NEXT: move.w (10,%sp), %d1 |
| ; CHECK-NEXT: muls %d1, %d0 |
| ; CHECK-NEXT: and.l #65535, %d0 |
| ; CHECK-NEXT: rts |
| entry: |
| %smul = tail call { i16, i1 } @llvm.smul.with.overflow.i16(i16 %a, i16 %b) |
| %cmp = extractvalue { i16, i1 } %smul, 1 |
| %smul.result = extractvalue { i16, i1 } %smul, 0 |
| %X = select i1 %cmp, i16 42, i16 %smul.result |
| ret i16 %X |
| } |
| |
| declare { i16, i1 } @llvm.smul.with.overflow.i16(i16, i16) nounwind readnone |
| |
| declare i32 @printf(ptr, ...) nounwind |
| declare {i32, i1} @llvm.smul.with.overflow.i32(i32, i32) |
| |
| @ok = internal constant [4 x i8] c"%d\0A\00" |
| @no = internal constant [4 x i8] c"no\0A\00" |
| |
| define fastcc i1 @test1(i32 %v1, i32 %v2) nounwind { |
| ; CHECK-LABEL: test1: |
| ; CHECK: ; %bb.0: ; %entry |
| ; CHECK-NEXT: suba.l #12, %sp |
| ; CHECK-NEXT: muls.l %d1, %d0 |
| ; CHECK-NEXT: bvc .LBB3_1 |
| ; CHECK-NEXT: ; %bb.2: ; %overflow |
| ; CHECK-NEXT: lea (no,%pc), %a0 |
| ; CHECK-NEXT: move.l %a0, (%sp) |
| ; CHECK-NEXT: jsr printf@PLT |
| ; CHECK-NEXT: moveq #0, %d0 |
| ; CHECK-NEXT: adda.l #12, %sp |
| ; CHECK-NEXT: rts |
| ; CHECK-NEXT: .LBB3_1: ; %normal |
| ; CHECK-NEXT: move.l %d0, (4,%sp) |
| ; CHECK-NEXT: lea (ok,%pc), %a0 |
| ; CHECK-NEXT: move.l %a0, (%sp) |
| ; CHECK-NEXT: jsr printf@PLT |
| ; CHECK-NEXT: moveq #1, %d0 |
| ; CHECK-NEXT: adda.l #12, %sp |
| ; CHECK-NEXT: rts |
| entry: |
| %t = call {i32, i1} @llvm.smul.with.overflow.i32(i32 %v1, i32 %v2) |
| %sum = extractvalue {i32, i1} %t, 0 |
| %obit = extractvalue {i32, i1} %t, 1 |
| br i1 %obit, label %overflow, label %normal |
| |
| normal: |
| %t1 = tail call i32 (ptr, ...) @printf( ptr @ok, i32 %sum ) nounwind |
| ret i1 true |
| |
| overflow: |
| %t2 = tail call i32 (ptr, ...) @printf( ptr @no ) nounwind |
| ret i1 false |
| } |
| |
| define fastcc i1 @test2(i32 %v1, i32 %v2) nounwind { |
| ; CHECK-LABEL: test2: |
| ; CHECK: ; %bb.0: ; %entry |
| ; CHECK-NEXT: suba.l #12, %sp |
| ; CHECK-NEXT: muls.l %d1, %d0 |
| ; CHECK-NEXT: svs %d1 |
| ; CHECK-NEXT: sub.b #1, %d1 |
| ; CHECK-NEXT: bne .LBB4_2 |
| ; CHECK-NEXT: ; %bb.1: ; %overflow |
| ; CHECK-NEXT: lea (no,%pc), %a0 |
| ; CHECK-NEXT: move.l %a0, (%sp) |
| ; CHECK-NEXT: jsr printf@PLT |
| ; CHECK-NEXT: moveq #0, %d0 |
| ; CHECK-NEXT: adda.l #12, %sp |
| ; CHECK-NEXT: rts |
| ; CHECK-NEXT: .LBB4_2: ; %normal |
| ; CHECK-NEXT: move.l %d0, (4,%sp) |
| ; CHECK-NEXT: lea (ok,%pc), %a0 |
| ; CHECK-NEXT: move.l %a0, (%sp) |
| ; CHECK-NEXT: jsr printf@PLT |
| ; CHECK-NEXT: moveq #1, %d0 |
| ; CHECK-NEXT: adda.l #12, %sp |
| ; CHECK-NEXT: rts |
| entry: |
| %t = call {i32, i1} @llvm.smul.with.overflow.i32(i32 %v1, i32 %v2) |
| %sum = extractvalue {i32, i1} %t, 0 |
| %obit = extractvalue {i32, i1} %t, 1 |
| br i1 %obit, label %overflow, label %normal |
| |
| overflow: |
| %t2 = tail call i32 (ptr, ...) @printf( ptr @no ) nounwind |
| ret i1 false |
| |
| normal: |
| %t1 = tail call i32 (ptr, ...) @printf( ptr @ok, i32 %sum ) nounwind |
| ret i1 true |
| } |
| |
| define i32 @test3(i32 %a, i32 %b) nounwind readnone { |
| ; CHECK-LABEL: test3: |
| ; CHECK: ; %bb.0: ; %entry |
| ; CHECK-NEXT: move.l (8,%sp), %d0 |
| ; CHECK-NEXT: add.l (4,%sp), %d0 |
| ; CHECK-NEXT: add.l %d0, %d0 |
| ; CHECK-NEXT: rts |
| entry: |
| %tmp0 = add i32 %b, %a |
| %tmp1 = call { i32, i1 } @llvm.smul.with.overflow.i32(i32 %tmp0, i32 2) |
| %tmp2 = extractvalue { i32, i1 } %tmp1, 0 |
| ret i32 %tmp2 |
| } |
| |
| ; Same as umul-with-overflow, we shouldn't fallback to |
| ; builtin here |
| define i32 @test4(i32 %a, i32 %b) nounwind readnone { |
| ; CHECK-LABEL: test4: |
| ; CHECK: ; %bb.0: ; %entry |
| ; CHECK-NEXT: move.l (8,%sp), %d0 |
| ; CHECK-NEXT: add.l (4,%sp), %d0 |
| ; CHECK-NEXT: moveq #4, %d1 |
| ; CHECK-NEXT: muls.l %d1, %d0 |
| ; CHECK-NEXT: rts |
| entry: |
| %tmp0 = add i32 %b, %a |
| %tmp1 = call { i32, i1 } @llvm.smul.with.overflow.i32(i32 %tmp0, i32 4) |
| %tmp2 = extractvalue { i32, i1 } %tmp1, 0 |
| ret i32 %tmp2 |
| } |