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llvm-project/llvm/test/Transforms/InstCombine/abs_abs.ll

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LLVM
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Added select flavour for ABS and NEG(ABS) This patch can identify ABS(X) ==> (X >s 0) ? X : -X and (X >s -1) ? X : -X ABS(X) ==> (X <s 0) ? -X : X and (X <s 1) ? -X : X NABS(X) ==> (X >s 0) ? -X : X and (X >s -1) ? -X : X NABS(X) ==> (X <s 0) ? X : -X and (X <s 1) ? X : -X and can transform ABS(ABS(X)) -> ABS(X) NABS(NABS(X)) -> NABS(X) Differential Revision: http://reviews.llvm.org/D3658 llvm-svn: 210312
2014-06-06 14:54:45 +08:00
; RUN: opt < %s -instcombine -S | FileCheck %s
define i32 @abs_abs_x01(i32 %x) {
%cmp = icmp sgt i32 %x, -1
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %x, i32 %sub
%cmp1 = icmp sgt i32 %cond, -1
%sub16 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %cond, i32 %sub16
ret i32 %cond18
; CHECK-LABEL: @abs_abs_x01(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp sgt i32 %x, -1
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 %x, i32 [[NEG]]
; CHECK-NEXT: ret i32 [[SEL]]
}
define i32 @abs_abs_x02(i32 %x) {
%cmp = icmp sgt i32 %x, 0
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %x, i32 %sub
%cmp1 = icmp sgt i32 %cond, -1
%sub16 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %cond, i32 %sub16
ret i32 %cond18
; CHECK-LABEL: @abs_abs_x02(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp sgt i32 %x, 0
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 %x, i32 [[NEG]]
; CHECK-NEXT: ret i32 [[SEL]]
}
define i32 @abs_abs_x03(i32 %x) {
%cmp = icmp slt i32 %x, 0
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %sub, i32 %x
%cmp1 = icmp sgt i32 %cond, -1
%sub16 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %cond, i32 %sub16
ret i32 %cond18
; CHECK-LABEL: @abs_abs_x03(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp slt i32 %x, 0
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 [[NEG]], i32 %x
; CHECK-NEXT: ret i32 [[SEL]]
}
define i32 @abs_abs_x04(i32 %x) {
%cmp = icmp slt i32 %x, 1
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %sub, i32 %x
%cmp1 = icmp sgt i32 %cond, -1
%sub16 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %cond, i32 %sub16
ret i32 %cond18
; CHECK-LABEL: @abs_abs_x04(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp slt i32 %x, 1
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 [[NEG]], i32 %x
; CHECK-NEXT: ret i32 [[SEL]]
}
define i32 @abs_abs_x05(i32 %x) {
%cmp = icmp sgt i32 %x, -1
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %x, i32 %sub
%cmp1 = icmp sgt i32 %cond, 0
%sub16 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %cond, i32 %sub16
ret i32 %cond18
; CHECK-LABEL: @abs_abs_x05(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp sgt i32 %x, -1
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 %x, i32 [[NEG]]
; CHECK-NEXT: ret i32 [[SEL]]
}
define i32 @abs_abs_x06(i32 %x) {
%cmp = icmp sgt i32 %x, 0
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %x, i32 %sub
%cmp1 = icmp sgt i32 %cond, 0
%sub16 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %cond, i32 %sub16
ret i32 %cond18
; CHECK-LABEL: @abs_abs_x06(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp sgt i32 %x, 0
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 %x, i32 [[NEG]]
; CHECK-NEXT: ret i32 [[SEL]]
}
define i32 @abs_abs_x07(i32 %x) {
%cmp = icmp slt i32 %x, 0
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %sub, i32 %x
%cmp1 = icmp sgt i32 %cond, 0
%sub16 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %cond, i32 %sub16
ret i32 %cond18
; CHECK-LABEL: @abs_abs_x07(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp slt i32 %x, 0
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 [[NEG]], i32 %x
; CHECK-NEXT: ret i32 [[SEL]]
}
define i32 @abs_abs_x08(i32 %x) {
%cmp = icmp slt i32 %x, 1
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %sub, i32 %x
%cmp1 = icmp sgt i32 %cond, 0
%sub16 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %cond, i32 %sub16
ret i32 %cond18
; CHECK-LABEL: @abs_abs_x08(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp slt i32 %x, 1
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 [[NEG]], i32 %x
; CHECK-NEXT: ret i32 [[SEL]]
}
define i32 @abs_abs_x09(i32 %x) {
%cmp = icmp sgt i32 %x, -1
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %x, i32 %sub
%cmp1 = icmp slt i32 %cond, 0
%sub9 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %sub9, i32 %cond
ret i32 %cond18
; CHECK-LABEL: @abs_abs_x09(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp sgt i32 %x, -1
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 %x, i32 [[NEG]]
; CHECK-NEXT: ret i32 [[SEL]]
}
define i32 @abs_abs_x10(i32 %x) {
%cmp = icmp sgt i32 %x, 0
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %x, i32 %sub
%cmp1 = icmp slt i32 %cond, 0
%sub9 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %sub9, i32 %cond
ret i32 %cond18
; CHECK-LABEL: @abs_abs_x10(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp sgt i32 %x, 0
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 %x, i32 [[NEG]]
; CHECK-NEXT: ret i32 [[SEL]]
}
define i32 @abs_abs_x11(i32 %x) {
%cmp = icmp slt i32 %x, 0
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %sub, i32 %x
%cmp1 = icmp slt i32 %cond, 0
%sub9 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %sub9, i32 %cond
ret i32 %cond18
; CHECK-LABEL: @abs_abs_x11(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp slt i32 %x, 0
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 [[NEG]], i32 %x
; CHECK-NEXT: ret i32 [[SEL]]
}
define i32 @abs_abs_x12(i32 %x) {
%cmp = icmp slt i32 %x, 1
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %sub, i32 %x
%cmp1 = icmp slt i32 %cond, 0
%sub9 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %sub9, i32 %cond
ret i32 %cond18
; CHECK-LABEL: @abs_abs_x12(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp slt i32 %x, 1
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 [[NEG]], i32 %x
; CHECK-NEXT: ret i32 [[SEL]]
}
define i32 @abs_abs_x13(i32 %x) {
%cmp = icmp sgt i32 %x, -1
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %x, i32 %sub
%cmp1 = icmp slt i32 %cond, 1
%sub9 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %sub9, i32 %cond
ret i32 %cond18
; CHECK-LABEL: @abs_abs_x13(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp sgt i32 %x, -1
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 %x, i32 [[NEG]]
; CHECK-NEXT: ret i32 [[SEL]]
}
define i32 @abs_abs_x14(i32 %x) {
%cmp = icmp sgt i32 %x, 0
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %x, i32 %sub
%cmp1 = icmp slt i32 %cond, 1
%sub9 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %sub9, i32 %cond
ret i32 %cond18
; CHECK-LABEL: @abs_abs_x14(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp sgt i32 %x, 0
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 %x, i32 [[NEG]]
; CHECK-NEXT: ret i32 [[SEL]]
}
define i32 @abs_abs_x15(i32 %x) {
%cmp = icmp slt i32 %x, 0
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %sub, i32 %x
%cmp1 = icmp slt i32 %cond, 1
%sub9 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %sub9, i32 %cond
ret i32 %cond18
; CHECK-LABEL: @abs_abs_x15(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp slt i32 %x, 0
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 [[NEG]], i32 %x
; CHECK-NEXT: ret i32 [[SEL]]
}
define i32 @abs_abs_x16(i32 %x) {
%cmp = icmp slt i32 %x, 1
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %sub, i32 %x
%cmp1 = icmp slt i32 %cond, 1
%sub9 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %sub9, i32 %cond
ret i32 %cond18
; CHECK-LABEL: @abs_abs_x16(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp slt i32 %x, 1
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 [[NEG]], i32 %x
; CHECK-NEXT: ret i32 [[SEL]]
}
define i32 @nabs_nabs_x01(i32 %x) {
%cmp = icmp sgt i32 %x, -1
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %sub, i32 %x
%cmp1 = icmp sgt i32 %cond, -1
%sub9 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %sub9, i32 %cond
ret i32 %cond18
; CHECK-LABEL: @nabs_nabs_x01(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp sgt i32 %x, -1
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 [[NEG]], i32 %x
; CHECK-NEXT: ret i32 [[SEL]]
}
define i32 @nabs_nabs_x02(i32 %x) {
%cmp = icmp sgt i32 %x, 0
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %sub, i32 %x
%cmp1 = icmp sgt i32 %cond, -1
%sub9 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %sub9, i32 %cond
ret i32 %cond18
; CHECK-LABEL: @nabs_nabs_x02(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp sgt i32 %x, 0
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 [[NEG]], i32 %x
; CHECK-NEXT: ret i32 [[SEL]]
}
define i32 @nabs_nabs_x03(i32 %x) {
%cmp = icmp slt i32 %x, 0
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %x, i32 %sub
%cmp1 = icmp sgt i32 %cond, -1
%sub9 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %sub9, i32 %cond
ret i32 %cond18
; CHECK-LABEL: @nabs_nabs_x03(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp slt i32 %x, 0
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 %x, i32 [[NEG]]
; CHECK-NEXT: ret i32 [[SEL]]
}
define i32 @nabs_nabs_x04(i32 %x) {
%cmp = icmp slt i32 %x, 1
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %x, i32 %sub
%cmp1 = icmp sgt i32 %cond, -1
%sub9 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %sub9, i32 %cond
ret i32 %cond18
; CHECK-LABEL: @nabs_nabs_x04(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp slt i32 %x, 1
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 %x, i32 [[NEG]]
; CHECK-NEXT: ret i32 [[SEL]]
}
define i32 @nabs_nabs_x05(i32 %x) {
%cmp = icmp sgt i32 %x, -1
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %sub, i32 %x
%cmp1 = icmp sgt i32 %cond, 0
%sub9 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %sub9, i32 %cond
ret i32 %cond18
; CHECK-LABEL: @nabs_nabs_x05(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp sgt i32 %x, -1
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 [[NEG]], i32 %x
; CHECK-NEXT: ret i32 [[SEL]]
}
define i32 @nabs_nabs_x06(i32 %x) {
%cmp = icmp sgt i32 %x, 0
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %sub, i32 %x
%cmp1 = icmp sgt i32 %cond, 0
%sub9 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %sub9, i32 %cond
ret i32 %cond18
; CHECK-LABEL: @nabs_nabs_x06(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp sgt i32 %x, 0
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 [[NEG]], i32 %x
; CHECK-NEXT: ret i32 [[SEL]]
}
define i32 @nabs_nabs_x07(i32 %x) {
%cmp = icmp slt i32 %x, 0
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %x, i32 %sub
%cmp1 = icmp sgt i32 %cond, 0
%sub9 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %sub9, i32 %cond
ret i32 %cond18
; CHECK-LABEL: @nabs_nabs_x07(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp slt i32 %x, 0
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 %x, i32 [[NEG]]
; CHECK-NEXT: ret i32 [[SEL]]
}
define i32 @nabs_nabs_x08(i32 %x) {
%cmp = icmp slt i32 %x, 1
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %x, i32 %sub
%cmp1 = icmp sgt i32 %cond, 0
%sub9 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %sub9, i32 %cond
ret i32 %cond18
; CHECK-LABEL: @nabs_nabs_x08(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp slt i32 %x, 1
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 %x, i32 [[NEG]]
; CHECK-NEXT: ret i32 [[SEL]]
}
define i32 @nabs_nabs_x09(i32 %x) {
%cmp = icmp sgt i32 %x, -1
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %sub, i32 %x
%cmp1 = icmp slt i32 %cond, 0
%sub16 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %cond, i32 %sub16
ret i32 %cond18
; CHECK-LABEL: @nabs_nabs_x09(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp sgt i32 %x, -1
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 [[NEG]], i32 %x
; CHECK-NEXT: ret i32 [[SEL]]
}
define i32 @nabs_nabs_x10(i32 %x) {
%cmp = icmp sgt i32 %x, 0
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %sub, i32 %x
%cmp1 = icmp slt i32 %cond, 0
%sub16 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %cond, i32 %sub16
ret i32 %cond18
; CHECK-LABEL: @nabs_nabs_x10(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp sgt i32 %x, 0
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 [[NEG]], i32 %x
; CHECK-NEXT: ret i32 [[SEL]]
}
define i32 @nabs_nabs_x11(i32 %x) {
%cmp = icmp slt i32 %x, 0
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %x, i32 %sub
%cmp1 = icmp slt i32 %cond, 0
%sub16 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %cond, i32 %sub16
ret i32 %cond18
; CHECK-LABEL: @nabs_nabs_x11(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp slt i32 %x, 0
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 %x, i32 [[NEG]]
; CHECK-NEXT: ret i32 [[SEL]]
}
define i32 @nabs_nabs_x12(i32 %x) {
%cmp = icmp slt i32 %x, 1
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %x, i32 %sub
%cmp1 = icmp slt i32 %cond, 0
%sub16 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %cond, i32 %sub16
ret i32 %cond18
; CHECK-LABEL: @nabs_nabs_x12(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp slt i32 %x, 1
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 %x, i32 [[NEG]]
; CHECK-NEXT: ret i32 [[SEL]]
}
define i32 @nabs_nabs_x13(i32 %x) {
%cmp = icmp sgt i32 %x, -1
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %sub, i32 %x
%cmp1 = icmp slt i32 %cond, 1
%sub16 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %cond, i32 %sub16
ret i32 %cond18
; CHECK-LABEL: @nabs_nabs_x13(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp sgt i32 %x, -1
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 [[NEG]], i32 %x
; CHECK-NEXT: ret i32 [[SEL]]
}
define i32 @nabs_nabs_x14(i32 %x) {
%cmp = icmp sgt i32 %x, 0
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %sub, i32 %x
%cmp1 = icmp slt i32 %cond, 1
%sub16 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %cond, i32 %sub16
ret i32 %cond18
; CHECK-LABEL: @nabs_nabs_x14(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp sgt i32 %x, 0
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 [[NEG]], i32 %x
; CHECK-NEXT: ret i32 [[SEL]]
}
define i32 @nabs_nabs_x15(i32 %x) {
%cmp = icmp slt i32 %x, 0
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %x, i32 %sub
%cmp1 = icmp slt i32 %cond, 1
%sub16 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %cond, i32 %sub16
ret i32 %cond18
; CHECK-LABEL: @nabs_nabs_x15(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp slt i32 %x, 0
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 %x, i32 [[NEG]]
; CHECK-NEXT: ret i32 [[SEL]]
}
define i32 @nabs_nabs_x16(i32 %x) {
%cmp = icmp slt i32 %x, 1
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %x, i32 %sub
%cmp1 = icmp slt i32 %cond, 1
%sub16 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %cond, i32 %sub16
ret i32 %cond18
; CHECK-LABEL: @nabs_nabs_x16(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp slt i32 %x, 1
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 %x, i32 [[NEG]]
; CHECK-NEXT: ret i32 [[SEL]]
}
This removes TODO added in http://reviews.llvm.org/D3658 The patch transforms ABS(NABS(X)) -> ABS(X) NABS(ABS(X)) -> NABS(X) Differential Revision: http://reviews.llvm.org/D4040 llvm-svn: 210782
2014-06-12 22:06:00 +08:00
define i32 @abs_nabs_x01(i32 %x) {
%cmp = icmp sgt i32 %x, -1
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %sub, i32 %x
%cmp1 = icmp sgt i32 %cond, -1
%sub16 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %cond, i32 %sub16
ret i32 %cond18
; CHECK-LABEL: @abs_nabs_x01(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp sgt i32 %x, -1
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 %x, i32 [[NEG]]
; CHECK-NEXT: ret i32 [[SEL]]
}
define i32 @abs_nabs_x02(i32 %x) {
%cmp = icmp sgt i32 %x, 0
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %sub, i32 %x
%cmp1 = icmp sgt i32 %cond, -1
%sub16 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %cond, i32 %sub16
ret i32 %cond18
; CHECK-LABEL: @abs_nabs_x02(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp sgt i32 %x, 0
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 %x, i32 [[NEG]]
; CHECK-NEXT: ret i32 [[SEL]]
}
define i32 @abs_nabs_x03(i32 %x) {
%cmp = icmp slt i32 %x, 0
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %x, i32 %sub
%cmp1 = icmp sgt i32 %cond, -1
%sub16 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %cond, i32 %sub16
ret i32 %cond18
; CHECK-LABEL: @abs_nabs_x03(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp slt i32 %x, 0
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 [[NEG]], i32 %x
; CHECK-NEXT: ret i32 [[SEL]]
}
define i32 @abs_nabs_x04(i32 %x) {
%cmp = icmp slt i32 %x, 1
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %x, i32 %sub
%cmp1 = icmp sgt i32 %cond, -1
%sub16 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %cond, i32 %sub16
ret i32 %cond18
; CHECK-LABEL: @abs_nabs_x04(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp slt i32 %x, 1
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 [[NEG]], i32 %x
; CHECK-NEXT: ret i32 [[SEL]]
}
define i32 @abs_nabs_x05(i32 %x) {
%cmp = icmp sgt i32 %x, -1
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %sub, i32 %x
%cmp1 = icmp sgt i32 %cond, 0
%sub16 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %cond, i32 %sub16
ret i32 %cond18
; CHECK-LABEL: @abs_nabs_x05(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp sgt i32 %x, -1
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 %x, i32 [[NEG]]
; CHECK-NEXT: ret i32 [[SEL]]
}
define i32 @abs_nabs_x06(i32 %x) {
%cmp = icmp sgt i32 %x, 0
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %sub, i32 %x
%cmp1 = icmp sgt i32 %cond, 0
%sub16 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %cond, i32 %sub16
ret i32 %cond18
; CHECK-LABEL: @abs_nabs_x06(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp sgt i32 %x, 0
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 %x, i32 [[NEG]]
; CHECK-NEXT: ret i32 [[SEL]]
}
define i32 @abs_nabs_x07(i32 %x) {
%cmp = icmp slt i32 %x, 0
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %x, i32 %sub
%cmp1 = icmp sgt i32 %cond, 0
%sub16 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %cond, i32 %sub16
ret i32 %cond18
; CHECK-LABEL: @abs_nabs_x07(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp slt i32 %x, 0
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 [[NEG]], i32 %x
; CHECK-NEXT: ret i32 [[SEL]]
}
define i32 @abs_nabs_x08(i32 %x) {
%cmp = icmp slt i32 %x, 1
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %x, i32 %sub
%cmp1 = icmp sgt i32 %cond, 0
%sub16 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %cond, i32 %sub16
ret i32 %cond18
; CHECK-LABEL: @abs_nabs_x08(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp slt i32 %x, 1
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 [[NEG]], i32 %x
; CHECK-NEXT: ret i32 [[SEL]]
}
define i32 @abs_nabs_x09(i32 %x) {
%cmp = icmp sgt i32 %x, -1
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %sub, i32 %x
%cmp1 = icmp slt i32 %cond, 0
%sub9 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %sub9, i32 %cond
ret i32 %cond18
; CHECK-LABEL: @abs_nabs_x09(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp sgt i32 %x, -1
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 %x, i32 [[NEG]]
; CHECK-NEXT: ret i32 [[SEL]]
}
define i32 @abs_nabs_x10(i32 %x) {
%cmp = icmp sgt i32 %x, 0
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %sub, i32 %x
%cmp1 = icmp slt i32 %cond, 0
%sub9 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %sub9, i32 %cond
ret i32 %cond18
; CHECK-LABEL: @abs_nabs_x10(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp sgt i32 %x, 0
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 %x, i32 [[NEG]]
; CHECK-NEXT: ret i32 [[SEL]]
}
define i32 @abs_nabs_x11(i32 %x) {
%cmp = icmp slt i32 %x, 0
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %x, i32 %sub
%cmp1 = icmp slt i32 %cond, 0
%sub9 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %sub9, i32 %cond
ret i32 %cond18
; CHECK-LABEL: @abs_nabs_x11(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp slt i32 %x, 0
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 [[NEG]], i32 %x
; CHECK-NEXT: ret i32 [[SEL]]
}
define i32 @abs_nabs_x12(i32 %x) {
%cmp = icmp slt i32 %x, 1
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %x, i32 %sub
%cmp1 = icmp slt i32 %cond, 0
%sub9 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %sub9, i32 %cond
ret i32 %cond18
; CHECK-LABEL: @abs_nabs_x12(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp slt i32 %x, 1
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 [[NEG]], i32 %x
; CHECK-NEXT: ret i32 [[SEL]]
}
define i32 @abs_nabs_x13(i32 %x) {
%cmp = icmp sgt i32 %x, -1
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %sub, i32 %x
%cmp1 = icmp slt i32 %cond, 1
%sub9 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %sub9, i32 %cond
ret i32 %cond18
; CHECK-LABEL: @abs_nabs_x13(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp sgt i32 %x, -1
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 %x, i32 [[NEG]]
; CHECK-NEXT: ret i32 [[SEL]]
}
define i32 @abs_nabs_x14(i32 %x) {
%cmp = icmp sgt i32 %x, 0
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %sub, i32 %x
%cmp1 = icmp slt i32 %cond, 1
%sub9 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %sub9, i32 %cond
ret i32 %cond18
; CHECK-LABEL: @abs_nabs_x14(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp sgt i32 %x, 0
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 %x, i32 [[NEG]]
; CHECK-NEXT: ret i32 [[SEL]]
}
define i32 @abs_nabs_x15(i32 %x) {
%cmp = icmp slt i32 %x, 0
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %x, i32 %sub
%cmp1 = icmp slt i32 %cond, 1
%sub9 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %sub9, i32 %cond
ret i32 %cond18
; CHECK-LABEL: @abs_nabs_x15(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp slt i32 %x, 0
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 [[NEG]], i32 %x
; CHECK-NEXT: ret i32 [[SEL]]
}
define i32 @abs_nabs_x16(i32 %x) {
%cmp = icmp slt i32 %x, 1
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %x, i32 %sub
%cmp1 = icmp slt i32 %cond, 1
%sub9 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %sub9, i32 %cond
ret i32 %cond18
; CHECK-LABEL: @abs_nabs_x16(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp slt i32 %x, 1
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 [[NEG]], i32 %x
; CHECK-NEXT: ret i32 [[SEL]]
}
define i32 @nabs_abs_x01(i32 %x) {
%cmp = icmp sgt i32 %x, -1
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %x, i32 %sub
%cmp1 = icmp sgt i32 %cond, -1
%sub9 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %sub9, i32 %cond
ret i32 %cond18
; CHECK-LABEL: @nabs_abs_x01(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp sgt i32 %x, -1
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 [[NEG]], i32 %x
; CHECK-NEXT: ret i32 [[SEL]]
}
define i32 @nabs_abs_x02(i32 %x) {
%cmp = icmp sgt i32 %x, 0
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %x, i32 %sub
%cmp1 = icmp sgt i32 %cond, -1
%sub9 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %sub9, i32 %cond
ret i32 %cond18
; CHECK-LABEL: @nabs_abs_x02(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp sgt i32 %x, 0
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 [[NEG]], i32 %x
; CHECK-NEXT: ret i32 [[SEL]]
}
define i32 @nabs_abs_x03(i32 %x) {
%cmp = icmp slt i32 %x, 0
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %sub, i32 %x
%cmp1 = icmp sgt i32 %cond, -1
%sub9 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %sub9, i32 %cond
ret i32 %cond18
; CHECK-LABEL: @nabs_abs_x03(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp slt i32 %x, 0
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 %x, i32 [[NEG]]
; CHECK-NEXT: ret i32 [[SEL]]
}
define i32 @nabs_abs_x04(i32 %x) {
%cmp = icmp slt i32 %x, 1
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %sub, i32 %x
%cmp1 = icmp sgt i32 %cond, -1
%sub9 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %sub9, i32 %cond
ret i32 %cond18
; CHECK-LABEL: @nabs_abs_x04(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp slt i32 %x, 1
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 %x, i32 [[NEG]]
; CHECK-NEXT: ret i32 [[SEL]]
}
define i32 @nabs_abs_x05(i32 %x) {
%cmp = icmp sgt i32 %x, -1
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %x, i32 %sub
%cmp1 = icmp sgt i32 %cond, 0
%sub9 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %sub9, i32 %cond
ret i32 %cond18
; CHECK-LABEL: @nabs_abs_x05(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp sgt i32 %x, -1
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 [[NEG]], i32 %x
; CHECK-NEXT: ret i32 [[SEL]]
}
define i32 @nabs_abs_x06(i32 %x) {
%cmp = icmp sgt i32 %x, 0
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %x, i32 %sub
%cmp1 = icmp sgt i32 %cond, 0
%sub9 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %sub9, i32 %cond
ret i32 %cond18
; CHECK-LABEL: @nabs_abs_x06(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp sgt i32 %x, 0
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 [[NEG]], i32 %x
; CHECK-NEXT: ret i32 [[SEL]]
}
define i32 @nabs_abs_x07(i32 %x) {
%cmp = icmp slt i32 %x, 0
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %sub, i32 %x
%cmp1 = icmp sgt i32 %cond, 0
%sub9 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %sub9, i32 %cond
ret i32 %cond18
; CHECK-LABEL: @nabs_abs_x07(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp slt i32 %x, 0
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 %x, i32 [[NEG]]
; CHECK-NEXT: ret i32 [[SEL]]
}
define i32 @nabs_abs_x08(i32 %x) {
%cmp = icmp slt i32 %x, 1
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %sub, i32 %x
%cmp1 = icmp sgt i32 %cond, 0
%sub9 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %sub9, i32 %cond
ret i32 %cond18
; CHECK-LABEL: @nabs_abs_x08(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp slt i32 %x, 1
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 %x, i32 [[NEG]]
; CHECK-NEXT: ret i32 [[SEL]]
}
define i32 @nabs_abs_x09(i32 %x) {
%cmp = icmp sgt i32 %x, -1
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %x, i32 %sub
%cmp1 = icmp slt i32 %cond, 0
%sub16 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %cond, i32 %sub16
ret i32 %cond18
; CHECK-LABEL: @nabs_abs_x09(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp sgt i32 %x, -1
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 [[NEG]], i32 %x
; CHECK-NEXT: ret i32 [[SEL]]
}
define i32 @nabs_abs_x10(i32 %x) {
%cmp = icmp sgt i32 %x, 0
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %x, i32 %sub
%cmp1 = icmp slt i32 %cond, 0
%sub16 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %cond, i32 %sub16
ret i32 %cond18
; CHECK-LABEL: @nabs_abs_x10(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp sgt i32 %x, 0
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 [[NEG]], i32 %x
; CHECK-NEXT: ret i32 [[SEL]]
}
define i32 @nabs_abs_x11(i32 %x) {
%cmp = icmp slt i32 %x, 0
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %sub, i32 %x
%cmp1 = icmp slt i32 %cond, 0
%sub16 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %cond, i32 %sub16
ret i32 %cond18
; CHECK-LABEL: @nabs_abs_x11(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp slt i32 %x, 0
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 %x, i32 [[NEG]]
; CHECK-NEXT: ret i32 [[SEL]]
}
define i32 @nabs_abs_x12(i32 %x) {
%cmp = icmp slt i32 %x, 1
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %sub, i32 %x
%cmp1 = icmp slt i32 %cond, 0
%sub16 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %cond, i32 %sub16
ret i32 %cond18
; CHECK-LABEL: @nabs_abs_x12(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp slt i32 %x, 1
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 %x, i32 [[NEG]]
; CHECK-NEXT: ret i32 [[SEL]]
}
define i32 @nabs_abs_x13(i32 %x) {
%cmp = icmp sgt i32 %x, -1
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %x, i32 %sub
%cmp1 = icmp slt i32 %cond, 1
%sub16 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %cond, i32 %sub16
ret i32 %cond18
; CHECK-LABEL: @nabs_abs_x13(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp sgt i32 %x, -1
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 [[NEG]], i32 %x
; CHECK-NEXT: ret i32 [[SEL]]
}
define i32 @nabs_abs_x14(i32 %x) {
%cmp = icmp sgt i32 %x, 0
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %x, i32 %sub
%cmp1 = icmp slt i32 %cond, 1
%sub16 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %cond, i32 %sub16
ret i32 %cond18
; CHECK-LABEL: @nabs_abs_x14(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp sgt i32 %x, 0
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 [[NEG]], i32 %x
; CHECK-NEXT: ret i32 [[SEL]]
}
define i32 @nabs_abs_x15(i32 %x) {
%cmp = icmp slt i32 %x, 0
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %sub, i32 %x
%cmp1 = icmp slt i32 %cond, 1
%sub16 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %cond, i32 %sub16
ret i32 %cond18
; CHECK-LABEL: @nabs_abs_x15(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp slt i32 %x, 0
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 %x, i32 [[NEG]]
; CHECK-NEXT: ret i32 [[SEL]]
}
define i32 @nabs_abs_x16(i32 %x) {
%cmp = icmp slt i32 %x, 1
%sub = sub nsw i32 0, %x
%cond = select i1 %cmp, i32 %sub, i32 %x
%cmp1 = icmp slt i32 %cond, 1
%sub16 = sub nsw i32 0, %cond
%cond18 = select i1 %cmp1, i32 %cond, i32 %sub16
ret i32 %cond18
; CHECK-LABEL: @nabs_abs_x16(
; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp slt i32 %x, 1
; CHECK-NEXT: [[NEG:%[a-z0-9]+]] = sub nsw i32 0, %x
; CHECK-NEXT: [[SEL:%[a-z0-9]+]] = select i1 [[CMP]], i32 %x, i32 [[NEG]]
; CHECK-NEXT: ret i32 [[SEL]]
}