| ; RUN: llc -march=mips -verify-machineinstrs < %s |\ |
| ; RUN: FileCheck %s -check-prefix=TRAP |
| ; RUN: llc -march=mips -mno-check-zero-division < %s |\ |
| ; RUN: FileCheck %s -check-prefix=NOCHECK |
| |
| ; TRAP-LABEL: sdiv1: |
| ; TRAP: div $zero, ${{[0-9]+}}, $[[R0:[0-9]+]] |
| ; TRAP: teq $[[R0]], $zero, 7 |
| ; TRAP: mflo |
| |
| ; NOCHECK-LABEL: sdiv1: |
| ; NOCHECK-NOT: teq |
| ; NOCHECK: .end sdiv1 |
| |
| @g0 = common global i32 0, align 4 |
| @g1 = common global i32 0, align 4 |
| |
| define i32 @sdiv1(i32 %a0, i32 %a1) nounwind readnone { |
| entry: |
| %div = sdiv i32 %a0, %a1 |
| ret i32 %div |
| } |
| |
| ; TRAP-LABEL: srem1: |
| ; TRAP: div $zero, ${{[0-9]+}}, $[[R0:[0-9]+]] |
| ; TRAP: teq $[[R0]], $zero, 7 |
| ; TRAP: mfhi |
| |
| define i32 @srem1(i32 %a0, i32 %a1) nounwind readnone { |
| entry: |
| %rem = srem i32 %a0, %a1 |
| ret i32 %rem |
| } |
| |
| ; TRAP-LABEL: udiv1: |
| ; TRAP: divu $zero, ${{[0-9]+}}, $[[R0:[0-9]+]] |
| ; TRAP: teq $[[R0]], $zero, 7 |
| ; TRAP: mflo |
| |
| define i32 @udiv1(i32 %a0, i32 %a1) nounwind readnone { |
| entry: |
| %div = udiv i32 %a0, %a1 |
| ret i32 %div |
| } |
| |
| ; TRAP-LABEL: urem1: |
| ; TRAP: divu $zero, ${{[0-9]+}}, $[[R0:[0-9]+]] |
| ; TRAP: teq $[[R0]], $zero, 7 |
| ; TRAP: mfhi |
| |
| define i32 @urem1(i32 %a0, i32 %a1) nounwind readnone { |
| entry: |
| %rem = urem i32 %a0, %a1 |
| ret i32 %rem |
| } |
| |
| ; TRAP: div $zero, |
| define i32 @sdivrem1(i32 %a0, i32 %a1, i32* nocapture %r) nounwind { |
| entry: |
| %rem = srem i32 %a0, %a1 |
| store i32 %rem, i32* %r, align 4 |
| %div = sdiv i32 %a0, %a1 |
| ret i32 %div |
| } |
| |
| ; TRAP: divu $zero, |
| define i32 @udivrem1(i32 %a0, i32 %a1, i32* nocapture %r) nounwind { |
| entry: |
| %rem = urem i32 %a0, %a1 |
| store i32 %rem, i32* %r, align 4 |
| %div = udiv i32 %a0, %a1 |
| ret i32 %div |
| } |
| |
| define i32 @killFlags() { |
| entry: |
| %0 = load i32* @g0, align 4 |
| %1 = load i32* @g1, align 4 |
| %div = sdiv i32 %0, %1 |
| ret i32 %div |
| } |