derek.holloway
7502bf64a4
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92 lines
2.9 KiB
LLVM
92 lines
2.9 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
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; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+nf | FileCheck %s
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; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+nf -x86-enable-apx-for-relocation=true | FileCheck %s
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define i32 @flag_copy_1(i32 %x, i32 %y, ptr %pz) nounwind {
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; CHECK-LABEL: flag_copy_1:
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; CHECK: # %bb.0:
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; CHECK-NEXT: movq %rdx, %rcx
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; CHECK-NEXT: movl %edi, %eax
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; CHECK-NEXT: mull %esi
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; CHECK-NEXT: movl (%rcx), %ecx
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; CHECK-NEXT: {nf} addl %eax, %ecx
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; CHECK-NEXT: cmovol %ecx, %eax
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; CHECK-NEXT: retq
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%o = tail call { i32, i1 } @llvm.umul.with.overflow.i32(i32 %x, i32 %y)
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%v1 = extractvalue { i32, i1 } %o, 1
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%v2 = extractvalue { i32, i1 } %o, 0
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%z = load i32, ptr %pz
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%a = add i32 %v2, %z
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%r = select i1 %v1, i32 %a, i32 %v2
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ret i32 %r
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}
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declare <2 x i128> @llvm.ssub.sat.v2i128(<2 x i128>, <2 x i128>)
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define <2 x i128> @flag_copy_2(<2 x i128> %x, <2 x i128> %y) nounwind {
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; CHECK-LABEL: flag_copy_2:
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; CHECK: # %bb.0:
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; CHECK-NEXT: movq %rdi, %rax
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; CHECK-NEXT: subq {{[0-9]+}}(%rsp), %rcx
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; CHECK-NEXT: sbbq {{[0-9]+}}(%rsp), %r8
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; CHECK-NEXT: movq %r8, %rdi
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; CHECK-NEXT: {nf} sarq $63, %rdi
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; CHECK-NEXT: cmovoq %rdi, %rcx
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; CHECK-NEXT: movabsq $-9223372036854775808, %r10 # imm = 0x8000000000000000
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; CHECK-NEXT: {nf} xorq %r10, %rdi
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; CHECK-NEXT: cmovnoq %r8, %rdi
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; CHECK-NEXT: subq %r9, %rsi
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; CHECK-NEXT: sbbq {{[0-9]+}}(%rsp), %rdx
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; CHECK-NEXT: movq %rdx, %r8
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; CHECK-NEXT: {nf} sarq $63, %r8
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; CHECK-NEXT: cmovoq %r8, %rsi
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; CHECK-NEXT: {nf} xorq %r10, %r8
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; CHECK-NEXT: cmovnoq %rdx, %r8
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; CHECK-NEXT: movq %rcx, 16(%rax)
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; CHECK-NEXT: movq %rsi, (%rax)
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; CHECK-NEXT: movq %rdi, 24(%rax)
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; CHECK-NEXT: movq %r8, 8(%rax)
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; CHECK-NEXT: retq
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%z = call <2 x i128> @llvm.ssub.sat.v2i128(<2 x i128> %x, <2 x i128> %y)
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ret <2 x i128> %z
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}
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; TODO: Remove the 2nd cmpl by using NF imul.
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define void @flag_copy_3(i32 %x, i32 %y, ptr %pa, ptr %pb, ptr %pc) nounwind {
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; CHECK-LABEL: flag_copy_3:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: # kill: def $esi killed $esi def $rsi
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; CHECK-NEXT: cmpl $2, %edi
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; CHECK-NEXT: jl .LBB2_2
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; CHECK-NEXT: # %bb.1: # %bb1
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; CHECK-NEXT: movl %edi, %eax
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; CHECK-NEXT: imull %esi, %eax
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; CHECK-NEXT: movl %eax, (%rdx)
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; CHECK-NEXT: jmp .LBB2_3
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; CHECK-NEXT: .LBB2_2: # %bb2
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; CHECK-NEXT: leal -2(%rsi), %eax
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; CHECK-NEXT: movl %eax, (%rcx)
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; CHECK-NEXT: .LBB2_3: # %bb3
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; CHECK-NEXT: cmpl $2, %edi
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; CHECK-NEXT: cmovgel %edi, %esi
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; CHECK-NEXT: movl %esi, (%r8)
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; CHECK-NEXT: retq
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entry:
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%cmp = icmp sgt i32 %x, 1
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br i1 %cmp, label %bb1, label %bb2
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bb1:
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%add = mul nuw nsw i32 %x, %y
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store i32 %add, ptr %pa
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br label %bb3
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bb2:
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%sub = sub nuw nsw i32 %y, 2
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store i32 %sub, ptr %pb
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br label %bb3
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bb3:
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%s = select i1 %cmp, i32 %x, i32 %y
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store i32 %s, ptr %pc
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ret void
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}
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