x86-select-udiv.mir
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# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple=i386-linux-gnu -run-pass=instruction-select -verify-machineinstrs %s -o - | FileCheck %s
--- |
; ModuleID = 'udiv.ll'
source_filename = "udiv.ll"
target datalayout = "e-m:e-p:32:32-f64:32:64-f80:32-n8:16:32-S128"
target triple = "i386--linux-gnu"
define i8 @test_udiv_i8(i8 %arg1, i8 %arg2) {
%res = udiv i8 %arg1, %arg2
ret i8 %res
}
define i16 @test_udiv_i16(i16 %arg1, i16 %arg2) {
%res = udiv i16 %arg1, %arg2
ret i16 %res
}
define i32 @test_udiv_i32(i32 %arg1, i32 %arg2) {
%res = udiv i32 %arg1, %arg2
ret i32 %res
}
...
---
name: test_udiv_i8
alignment: 16
exposesReturnsTwice: false
legalized: true
regBankSelected: true
selected: false
failedISel: false
tracksRegLiveness: true
registers:
- { id: 0, class: gpr, preferred-register: '' }
- { id: 1, class: gpr, preferred-register: '' }
- { id: 2, class: gpr, preferred-register: '' }
- { id: 3, class: gpr, preferred-register: '' }
- { id: 4, class: gpr, preferred-register: '' }
liveins:
frameInfo:
isFrameAddressTaken: false
isReturnAddressTaken: false
hasStackMap: false
hasPatchPoint: false
stackSize: 0
offsetAdjustment: 0
maxAlignment: 4
adjustsStack: false
hasCalls: false
stackProtector: ''
maxCallFrameSize: 4294967295
hasOpaqueSPAdjustment: false
hasVAStart: false
hasMustTailInVarArgFunc: false
localFrameSize: 0
savePoint: ''
restorePoint: ''
fixedStack:
- { id: 0, type: default, offset: 4, size: 1, alignment: 4, stack-id: default,
isImmutable: true, isAliased: false, callee-saved-register: '', callee-saved-restored: true,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
- { id: 1, type: default, offset: 0, size: 1, alignment: 16, stack-id: default,
isImmutable: true, isAliased: false, callee-saved-register: '', callee-saved-restored: true,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
stack:
constants:
body: |
bb.1 (%ir-block.0):
; CHECK-LABEL: name: test_udiv_i8
; CHECK: [[MOV8rm:%[0-9]+]]:gr8 = MOV8rm %fixed-stack.0, 1, $noreg, 0, $noreg :: (invariant load 1 from %fixed-stack.0, align 16)
; CHECK: [[MOV8rm1:%[0-9]+]]:gr8 = MOV8rm %fixed-stack.1, 1, $noreg, 0, $noreg :: (invariant load 1 from %fixed-stack.1, align 4)
; CHECK: $ax = MOVZX16rr8 [[MOV8rm]]
; CHECK: DIV8r [[MOV8rm1]], implicit-def $al, implicit-def $ah, implicit-def $eflags, implicit $ax
; CHECK: [[COPY:%[0-9]+]]:gr8 = COPY $al
; CHECK: $al = COPY [[COPY]]
; CHECK: RET 0, implicit $al
%2:gpr(p0) = G_FRAME_INDEX %fixed-stack.1
%0:gpr(s8) = G_LOAD %2(p0) :: (invariant load 1 from %fixed-stack.1, align 16)
%3:gpr(p0) = G_FRAME_INDEX %fixed-stack.0
%1:gpr(s8) = G_LOAD %3(p0) :: (invariant load 1 from %fixed-stack.0, align 4)
%4:gpr(s8) = G_UDIV %0, %1
$al = COPY %4(s8)
RET 0, implicit $al
...
---
name: test_udiv_i16
alignment: 16
exposesReturnsTwice: false
legalized: true
regBankSelected: true
selected: false
failedISel: false
tracksRegLiveness: true
registers:
- { id: 0, class: gpr, preferred-register: '' }
- { id: 1, class: gpr, preferred-register: '' }
- { id: 2, class: gpr, preferred-register: '' }
- { id: 3, class: gpr, preferred-register: '' }
- { id: 4, class: gpr, preferred-register: '' }
liveins:
frameInfo:
isFrameAddressTaken: false
isReturnAddressTaken: false
hasStackMap: false
hasPatchPoint: false
stackSize: 0
offsetAdjustment: 0
maxAlignment: 4
adjustsStack: false
hasCalls: false
stackProtector: ''
maxCallFrameSize: 4294967295
hasOpaqueSPAdjustment: false
hasVAStart: false
hasMustTailInVarArgFunc: false
localFrameSize: 0
savePoint: ''
restorePoint: ''
fixedStack:
- { id: 0, type: default, offset: 4, size: 2, alignment: 4, stack-id: default,
isImmutable: true, isAliased: false, callee-saved-register: '', callee-saved-restored: true,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
- { id: 1, type: default, offset: 0, size: 2, alignment: 16, stack-id: default,
isImmutable: true, isAliased: false, callee-saved-register: '', callee-saved-restored: true,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
stack:
constants:
body: |
bb.1 (%ir-block.0):
; CHECK-LABEL: name: test_udiv_i16
; CHECK: [[MOV16rm:%[0-9]+]]:gr16 = MOV16rm %fixed-stack.0, 1, $noreg, 0, $noreg :: (invariant load 2 from %fixed-stack.0, align 16)
; CHECK: [[MOV16rm1:%[0-9]+]]:gr16 = MOV16rm %fixed-stack.1, 1, $noreg, 0, $noreg :: (invariant load 2 from %fixed-stack.1, align 4)
; CHECK: $ax = COPY [[MOV16rm]]
; CHECK: [[MOV32r0_:%[0-9]+]]:gr32 = MOV32r0 implicit-def $eflags
; CHECK: $dx = COPY [[MOV32r0_]].sub_16bit
; CHECK: DIV16r [[MOV16rm1]], implicit-def $ax, implicit-def $dx, implicit-def $eflags, implicit $ax, implicit $dx
; CHECK: [[COPY:%[0-9]+]]:gr16 = COPY $ax
; CHECK: $ax = COPY [[COPY]]
; CHECK: RET 0, implicit $ax
%2:gpr(p0) = G_FRAME_INDEX %fixed-stack.1
%0:gpr(s16) = G_LOAD %2(p0) :: (invariant load 2 from %fixed-stack.1, align 16)
%3:gpr(p0) = G_FRAME_INDEX %fixed-stack.0
%1:gpr(s16) = G_LOAD %3(p0) :: (invariant load 2 from %fixed-stack.0, align 4)
%4:gpr(s16) = G_UDIV %0, %1
$ax = COPY %4(s16)
RET 0, implicit $ax
...
---
name: test_udiv_i32
alignment: 16
exposesReturnsTwice: false
legalized: true
regBankSelected: true
selected: false
failedISel: false
tracksRegLiveness: true
registers:
- { id: 0, class: gpr, preferred-register: '' }
- { id: 1, class: gpr, preferred-register: '' }
- { id: 2, class: gpr, preferred-register: '' }
- { id: 3, class: gpr, preferred-register: '' }
- { id: 4, class: gpr, preferred-register: '' }
liveins:
frameInfo:
isFrameAddressTaken: false
isReturnAddressTaken: false
hasStackMap: false
hasPatchPoint: false
stackSize: 0
offsetAdjustment: 0
maxAlignment: 4
adjustsStack: false
hasCalls: false
stackProtector: ''
maxCallFrameSize: 4294967295
hasOpaqueSPAdjustment: false
hasVAStart: false
hasMustTailInVarArgFunc: false
localFrameSize: 0
savePoint: ''
restorePoint: ''
fixedStack:
- { id: 0, type: default, offset: 4, size: 4, alignment: 4, stack-id: default,
isImmutable: true, isAliased: false, callee-saved-register: '', callee-saved-restored: true,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
- { id: 1, type: default, offset: 0, size: 4, alignment: 16, stack-id: default,
isImmutable: true, isAliased: false, callee-saved-register: '', callee-saved-restored: true,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
stack:
constants:
body: |
bb.1 (%ir-block.0):
; CHECK-LABEL: name: test_udiv_i32
; CHECK: [[MOV32rm:%[0-9]+]]:gr32 = MOV32rm %fixed-stack.0, 1, $noreg, 0, $noreg :: (invariant load 4 from %fixed-stack.0)
; CHECK: [[MOV32rm1:%[0-9]+]]:gr32 = MOV32rm %fixed-stack.1, 1, $noreg, 0, $noreg :: (invariant load 4 from %fixed-stack.1, align 16)
; CHECK: $eax = COPY [[MOV32rm]]
; CHECK: [[MOV32r0_:%[0-9]+]]:gr32 = MOV32r0 implicit-def $eflags
; CHECK: $edx = COPY [[MOV32r0_]]
; CHECK: DIV32r [[MOV32rm1]], implicit-def $eax, implicit-def $edx, implicit-def $eflags, implicit $eax, implicit $edx
; CHECK: [[COPY:%[0-9]+]]:gr32 = COPY $eax
; CHECK: $eax = COPY [[COPY]]
; CHECK: RET 0, implicit $eax
%2:gpr(p0) = G_FRAME_INDEX %fixed-stack.1
%0:gpr(s32) = G_LOAD %2(p0) :: (invariant load 4 from %fixed-stack.1, align 4)
%3:gpr(p0) = G_FRAME_INDEX %fixed-stack.0
%1:gpr(s32) = G_LOAD %3(p0) :: (invariant load 4 from %fixed-stack.0, align 16)
%4:gpr(s32) = G_UDIV %0, %1
$eax = COPY %4(s32)
RET 0, implicit $eax
...