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llvm/test/CodeGen/X86/xaluo.ll
Juergen Ributzka 0adbcf3ba9 [FastISel][X86] Extend support for {s|u}{add|sub|mul}.with.overflow intrinsics. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210610 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-10 23:52:44 +00:00

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LLVM
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; RUN: llc -mtriple=x86_64-unknown-unknown < %s | FileCheck %s -check-prefix=DAG
; RUN: llc -mtriple=x86_64-unknown-unknown -fast-isel -fast-isel-abort < %s | FileCheck %s --check-prefix=FAST
;
; Get the actual value of the overflow bit.
;
; SADDO reg, reg
define zeroext i1 @saddo.i8(i8 signext %v1, i8 signext %v2, i8* %res) {
entry:
; DAG-LABEL: saddo.i8
; DAG: addb %sil, %dil
; DAG-NEXT: seto %al
; FAST-LABEL: saddo.i8
; FAST: addb %sil, %dil
; FAST-NEXT: seto %al
%t = call {i8, i1} @llvm.sadd.with.overflow.i8(i8 %v1, i8 %v2)
%val = extractvalue {i8, i1} %t, 0
%obit = extractvalue {i8, i1} %t, 1
store i8 %val, i8* %res
ret i1 %obit
}
define zeroext i1 @saddo.i16(i16 %v1, i16 %v2, i16* %res) {
entry:
; DAG-LABEL: saddo.i16
; DAG: addw %si, %di
; DAG-NEXT: seto %al
; FAST-LABEL: saddo.i16
; FAST: addw %si, %di
; FAST-NEXT: seto %al
%t = call {i16, i1} @llvm.sadd.with.overflow.i16(i16 %v1, i16 %v2)
%val = extractvalue {i16, i1} %t, 0
%obit = extractvalue {i16, i1} %t, 1
store i16 %val, i16* %res
ret i1 %obit
}
define zeroext i1 @saddo.i32(i32 %v1, i32 %v2, i32* %res) {
entry:
; DAG-LABEL: saddo.i32
; DAG: addl %esi, %edi
; DAG-NEXT: seto %al
; FAST-LABEL: saddo.i32
; FAST: addl %esi, %edi
; FAST-NEXT: seto %al
%t = call {i32, i1} @llvm.sadd.with.overflow.i32(i32 %v1, i32 %v2)
%val = extractvalue {i32, i1} %t, 0
%obit = extractvalue {i32, i1} %t, 1
store i32 %val, i32* %res
ret i1 %obit
}
define zeroext i1 @saddo.i64(i64 %v1, i64 %v2, i64* %res) {
entry:
; DAG-LABEL: saddo.i64
; DAG: addq %rsi, %rdi
; DAG-NEXT: seto %al
; FAST-LABEL: saddo.i64
; FAST: addq %rsi, %rdi
; FAST-NEXT: seto %al
%t = call {i64, i1} @llvm.sadd.with.overflow.i64(i64 %v1, i64 %v2)
%val = extractvalue {i64, i1} %t, 0
%obit = extractvalue {i64, i1} %t, 1
store i64 %val, i64* %res
ret i1 %obit
}
; SADDO reg, imm | imm, reg
; FIXME: INC isn't supported in FastISel yet
define zeroext i1 @saddo.i64imm1(i64 %v1, i64* %res) {
entry:
; DAG-LABEL: saddo.i64imm1
; DAG: incq %rdi
; DAG-NEXT: seto %al
; FAST-LABEL: saddo.i64imm1
; FAST: addq $1, %rdi
; FAST-NEXT: seto %al
%t = call {i64, i1} @llvm.sadd.with.overflow.i64(i64 %v1, i64 1)
%val = extractvalue {i64, i1} %t, 0
%obit = extractvalue {i64, i1} %t, 1
store i64 %val, i64* %res
ret i1 %obit
}
; FIXME: DAG doesn't optimize immediates on the LHS.
define zeroext i1 @saddo.i64imm2(i64 %v1, i64* %res) {
entry:
; DAG-LABEL: saddo.i64imm2
; DAG: mov
; DAG-NEXT: addq
; DAG-NEXT: seto
; FAST-LABEL: saddo.i64imm2
; FAST: addq $1, %rdi
; FAST-NEXT: seto %al
%t = call {i64, i1} @llvm.sadd.with.overflow.i64(i64 1, i64 %v1)
%val = extractvalue {i64, i1} %t, 0
%obit = extractvalue {i64, i1} %t, 1
store i64 %val, i64* %res
ret i1 %obit
}
; Check boundary conditions for large immediates.
define zeroext i1 @saddo.i64imm3(i64 %v1, i64* %res) {
entry:
; DAG-LABEL: saddo.i64imm3
; DAG: addq $-2147483648, %rdi
; DAG-NEXT: seto %al
; FAST-LABEL: saddo.i64imm3
; FAST: addq $-2147483648, %rdi
; FAST-NEXT: seto %al
%t = call {i64, i1} @llvm.sadd.with.overflow.i64(i64 %v1, i64 -2147483648)
%val = extractvalue {i64, i1} %t, 0
%obit = extractvalue {i64, i1} %t, 1
store i64 %val, i64* %res
ret i1 %obit
}
define zeroext i1 @saddo.i64imm4(i64 %v1, i64* %res) {
entry:
; DAG-LABEL: saddo.i64imm4
; DAG: movabsq $-21474836489, %[[REG:[a-z]+]]
; DAG-NEXT: addq %rdi, %[[REG]]
; DAG-NEXT: seto
; FAST-LABEL: saddo.i64imm4
; FAST: movabsq $-21474836489, %[[REG:[a-z]+]]
; FAST-NEXT: addq %rdi, %[[REG]]
; FAST-NEXT: seto
%t = call {i64, i1} @llvm.sadd.with.overflow.i64(i64 %v1, i64 -21474836489)
%val = extractvalue {i64, i1} %t, 0
%obit = extractvalue {i64, i1} %t, 1
store i64 %val, i64* %res
ret i1 %obit
}
define zeroext i1 @saddo.i64imm5(i64 %v1, i64* %res) {
entry:
; DAG-LABEL: saddo.i64imm5
; DAG: addq $2147483647, %rdi
; DAG-NEXT: seto
; FAST-LABEL: saddo.i64imm5
; FAST: addq $2147483647, %rdi
; FAST-NEXT: seto
%t = call {i64, i1} @llvm.sadd.with.overflow.i64(i64 %v1, i64 2147483647)
%val = extractvalue {i64, i1} %t, 0
%obit = extractvalue {i64, i1} %t, 1
store i64 %val, i64* %res
ret i1 %obit
}
; TODO: FastISel shouldn't use movabsq.
define zeroext i1 @saddo.i64imm6(i64 %v1, i64* %res) {
entry:
; DAG-LABEL: saddo.i64imm6
; DAG: movl $2147483648, %ecx
; DAG: addq %rdi, %rcx
; DAG-NEXT: seto
; FAST-LABEL: saddo.i64imm6
; FAST: movabsq $2147483648, %[[REG:[a-z]+]]
; FAST: addq %rdi, %[[REG]]
; FAST-NEXT: seto
%t = call {i64, i1} @llvm.sadd.with.overflow.i64(i64 %v1, i64 2147483648)
%val = extractvalue {i64, i1} %t, 0
%obit = extractvalue {i64, i1} %t, 1
store i64 %val, i64* %res
ret i1 %obit
}
; UADDO
define zeroext i1 @uaddo.i32(i32 %v1, i32 %v2, i32* %res) {
entry:
; DAG-LABEL: uaddo.i32
; DAG: addl %esi, %edi
; DAG-NEXT: setb %al
; FAST-LABEL: uaddo.i32
; FAST: addl %esi, %edi
; FAST-NEXT: setb %al
%t = call {i32, i1} @llvm.uadd.with.overflow.i32(i32 %v1, i32 %v2)
%val = extractvalue {i32, i1} %t, 0
%obit = extractvalue {i32, i1} %t, 1
store i32 %val, i32* %res
ret i1 %obit
}
define zeroext i1 @uaddo.i64(i64 %v1, i64 %v2, i64* %res) {
entry:
; DAG-LABEL: uaddo.i64
; DAG: addq %rsi, %rdi
; DAG-NEXT: setb %al
; FAST-LABEL: uaddo.i64
; FAST: addq %rsi, %rdi
; FAST-NEXT: setb %al
%t = call {i64, i1} @llvm.uadd.with.overflow.i64(i64 %v1, i64 %v2)
%val = extractvalue {i64, i1} %t, 0
%obit = extractvalue {i64, i1} %t, 1
store i64 %val, i64* %res
ret i1 %obit
}
; SSUBO
define zeroext i1 @ssubo.i32(i32 %v1, i32 %v2, i32* %res) {
entry:
; DAG-LABEL: ssubo.i32
; DAG: subl %esi, %edi
; DAG-NEXT: seto %al
; FAST-LABEL: ssubo.i32
; FAST: subl %esi, %edi
; FAST-NEXT: seto %al
%t = call {i32, i1} @llvm.ssub.with.overflow.i32(i32 %v1, i32 %v2)
%val = extractvalue {i32, i1} %t, 0
%obit = extractvalue {i32, i1} %t, 1
store i32 %val, i32* %res
ret i1 %obit
}
define zeroext i1 @ssubo.i64(i64 %v1, i64 %v2, i64* %res) {
entry:
; DAG-LABEL: ssubo.i64
; DAG: subq %rsi, %rdi
; DAG-NEXT: seto %al
; FAST-LABEL: ssubo.i64
; FAST: subq %rsi, %rdi
; FAST-NEXT: seto %al
%t = call {i64, i1} @llvm.ssub.with.overflow.i64(i64 %v1, i64 %v2)
%val = extractvalue {i64, i1} %t, 0
%obit = extractvalue {i64, i1} %t, 1
store i64 %val, i64* %res
ret i1 %obit
}
; USUBO
define zeroext i1 @usubo.i32(i32 %v1, i32 %v2, i32* %res) {
entry:
; DAG-LABEL: usubo.i32
; DAG: subl %esi, %edi
; DAG-NEXT: setb %al
; FAST-LABEL: usubo.i32
; FAST: subl %esi, %edi
; FAST-NEXT: setb %al
%t = call {i32, i1} @llvm.usub.with.overflow.i32(i32 %v1, i32 %v2)
%val = extractvalue {i32, i1} %t, 0
%obit = extractvalue {i32, i1} %t, 1
store i32 %val, i32* %res
ret i1 %obit
}
define zeroext i1 @usubo.i64(i64 %v1, i64 %v2, i64* %res) {
entry:
; DAG-LABEL: usubo.i64
; DAG: subq %rsi, %rdi
; DAG-NEXT: setb %al
; FAST-LABEL: usubo.i64
; FAST: subq %rsi, %rdi
; FAST-NEXT: setb %al
%t = call {i64, i1} @llvm.usub.with.overflow.i64(i64 %v1, i64 %v2)
%val = extractvalue {i64, i1} %t, 0
%obit = extractvalue {i64, i1} %t, 1
store i64 %val, i64* %res
ret i1 %obit
}
; SMULO
define zeroext i1 @smulo.i32(i32 %v1, i32 %v2, i32* %res) {
entry:
; DAG-LABEL: smulo.i32
; DAG: imull %esi, %edi
; DAG-NEXT: seto %al
; FAST-LABEL: smulo.i32
; FAST: imull %esi, %edi
; FAST-NEXT: seto %al
%t = call {i32, i1} @llvm.smul.with.overflow.i32(i32 %v1, i32 %v2)
%val = extractvalue {i32, i1} %t, 0
%obit = extractvalue {i32, i1} %t, 1
store i32 %val, i32* %res
ret i1 %obit
}
define zeroext i1 @smulo.i64(i64 %v1, i64 %v2, i64* %res) {
entry:
; DAG-LABEL: smulo.i64
; DAG: imulq %rsi, %rdi
; DAG-NEXT: seto %al
; FAST-LABEL: smulo.i64
; FAST: imulq %rsi, %rdi
; FAST-NEXT: seto %al
%t = call {i64, i1} @llvm.smul.with.overflow.i64(i64 %v1, i64 %v2)
%val = extractvalue {i64, i1} %t, 0
%obit = extractvalue {i64, i1} %t, 1
store i64 %val, i64* %res
ret i1 %obit
}
; UMULO
define zeroext i1 @umulo.i32(i32 %v1, i32 %v2, i32* %res) {
entry:
; DAG-LABEL: umulo.i32
; DAG: mull %esi
; DAG-NEXT: seto
; FAST-LABEL: umulo.i32
; FAST: mull %esi
; FAST-NEXT: seto
%t = call {i32, i1} @llvm.umul.with.overflow.i32(i32 %v1, i32 %v2)
%val = extractvalue {i32, i1} %t, 0
%obit = extractvalue {i32, i1} %t, 1
store i32 %val, i32* %res
ret i1 %obit
}
define zeroext i1 @umulo.i64(i64 %v1, i64 %v2, i64* %res) {
entry:
; DAG-LABEL: umulo.i64
; DAG: mulq %rsi
; DAG-NEXT: seto
; FAST-LABEL: umulo.i64
; FAST: mulq %rsi
; FAST-NEXT: seto
%t = call {i64, i1} @llvm.umul.with.overflow.i64(i64 %v1, i64 %v2)
%val = extractvalue {i64, i1} %t, 0
%obit = extractvalue {i64, i1} %t, 1
store i64 %val, i64* %res
ret i1 %obit
}
declare {i8, i1} @llvm.sadd.with.overflow.i8(i8, i8) nounwind readnone
declare {i16, i1} @llvm.sadd.with.overflow.i16(i16, i16) nounwind readnone
declare {i32, i1} @llvm.sadd.with.overflow.i32(i32, i32) nounwind readnone
declare {i64, i1} @llvm.sadd.with.overflow.i64(i64, i64) nounwind readnone
declare {i32, i1} @llvm.uadd.with.overflow.i32(i32, i32) nounwind readnone
declare {i64, i1} @llvm.uadd.with.overflow.i64(i64, i64) nounwind readnone
declare {i32, i1} @llvm.ssub.with.overflow.i32(i32, i32) nounwind readnone
declare {i64, i1} @llvm.ssub.with.overflow.i64(i64, i64) nounwind readnone
declare {i32, i1} @llvm.usub.with.overflow.i32(i32, i32) nounwind readnone
declare {i64, i1} @llvm.usub.with.overflow.i64(i64, i64) nounwind readnone
declare {i32, i1} @llvm.smul.with.overflow.i32(i32, i32) nounwind readnone
declare {i64, i1} @llvm.smul.with.overflow.i64(i64, i64) nounwind readnone
declare {i32, i1} @llvm.umul.with.overflow.i32(i32, i32) nounwind readnone
declare {i64, i1} @llvm.umul.with.overflow.i64(i64, i64) nounwind readnone
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