72 lines
2.0 KiB
LLVM
72 lines
2.0 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -mtriple=x86_64-linux | FileCheck %s --check-prefixes=LINUX
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; RUN: llc < %s -mtriple=x86_64-win32 | FileCheck %s --check-prefixes=WIN
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; RUN: llc < %s -mtriple=x86_64-linux-gnux32 | FileCheck %s --check-prefixes=LINUX
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; RUN: llc < %s -mtriple=x86_64-nacl | FileCheck %s --check-prefixes=LINUX
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define i32 @test1(i32 %x) nounwind {
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; LINUX-LABEL: test1:
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; LINUX: # %bb.0:
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; LINUX-NEXT: # kill: def $edi killed $edi def $rdi
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; LINUX-NEXT: leal 7(,%rdi,8), %eax
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; LINUX-NEXT: retq
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;
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; WIN-LABEL: test1:
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; WIN: # %bb.0:
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; WIN-NEXT: # kill: def $ecx killed $ecx def $rcx
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; WIN-NEXT: leal 7(,%rcx,8), %eax
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; WIN-NEXT: retq
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%tmp1 = shl i32 %x, 3
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%tmp2 = add i32 %tmp1, 7
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ret i32 %tmp2
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}
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; ISel the add of -4 with a neg and use an lea for the rest of the
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; arithmetic.
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define i32 @test2(i32 %x_offs) nounwind readnone {
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; LINUX-LABEL: test2:
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; LINUX: # %bb.0: # %entry
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; LINUX-NEXT: # kill: def $edi killed $edi def $rdi
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; LINUX-NEXT: cmpl $5, %edi
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; LINUX-NEXT: jl .LBB1_2
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; LINUX-NEXT: # %bb.1: # %bb.nph
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; LINUX-NEXT: leal -5(%rdi), %eax
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; LINUX-NEXT: andl $-4, %eax
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; LINUX-NEXT: negl %eax
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; LINUX-NEXT: leal -4(%rdi,%rax), %eax
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; LINUX-NEXT: retq
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; LINUX-NEXT: .LBB1_2: # %bb2
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; LINUX-NEXT: movl %edi, %eax
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; LINUX-NEXT: retq
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;
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; WIN-LABEL: test2:
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; WIN: # %bb.0: # %entry
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; WIN-NEXT: # kill: def $ecx killed $ecx def $rcx
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; WIN-NEXT: cmpl $5, %ecx
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; WIN-NEXT: jl .LBB1_2
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; WIN-NEXT: # %bb.1: # %bb.nph
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; WIN-NEXT: leal -5(%rcx), %eax
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; WIN-NEXT: andl $-4, %eax
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; WIN-NEXT: negl %eax
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; WIN-NEXT: leal -4(%rcx,%rax), %eax
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; WIN-NEXT: retq
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; WIN-NEXT: .LBB1_2: # %bb2
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; WIN-NEXT: movl %ecx, %eax
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; WIN-NEXT: retq
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entry:
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%t0 = icmp sgt i32 %x_offs, 4
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br i1 %t0, label %bb.nph, label %bb2
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bb.nph:
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%tmp = add i32 %x_offs, -5
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%tmp6 = lshr i32 %tmp, 2
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%tmp7 = mul i32 %tmp6, -4
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%tmp8 = add i32 %tmp7, %x_offs
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%tmp9 = add i32 %tmp8, -4
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ret i32 %tmp9
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bb2:
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ret i32 %x_offs
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}
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