derek.holloway
7502bf64a4
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232 lines
6.1 KiB
LLVM
232 lines
6.1 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 4
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; RUN: llc -mtriple=x86_64-linux -mcpu=atom < %s | FileCheck %s
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; RUN: llc -mtriple=x86_64-linux -mcpu=slm < %s | FileCheck %s -check-prefix=SLM
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; RUN: llc -mtriple=x86_64-linux -mattr=+egpr,+ndd,+prefer-ndd-mem,+movbe < %s | FileCheck %s -check-prefix=EGPR
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; RUN: llc -mtriple=x86_64-linux -mattr=+egpr,+ndd,-prefer-ndd-mem,+movbe < %s | FileCheck %s -check-prefix=EGPR
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; RUN: llc -mtriple=x86_64-linux -mattr=+egpr,+ndd,+prefer-ndd-mem --show-mc-encoding < %s | FileCheck %s -check-prefix=NOMOVBE
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declare i16 @llvm.bswap.i16(i16) nounwind readnone
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declare i32 @llvm.bswap.i32(i32) nounwind readnone
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declare i64 @llvm.bswap.i64(i64) nounwind readnone
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define void @test1(ptr nocapture %x, i16 %y) nounwind {
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; CHECK-LABEL: test1:
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; CHECK: # %bb.0:
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; CHECK-NEXT: movbew %si, (%rdi)
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; CHECK-NEXT: nop
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; CHECK-NEXT: nop
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; CHECK-NEXT: nop
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; CHECK-NEXT: nop
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; CHECK-NEXT: nop
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; CHECK-NEXT: nop
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; CHECK-NEXT: retq
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;
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; SLM-LABEL: test1:
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; SLM: # %bb.0:
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; SLM-NEXT: movbew %si, (%rdi)
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; SLM-NEXT: retq
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;
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; EGPR-LABEL: test1:
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; EGPR: # %bb.0:
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; EGPR-NEXT: movbew %si, (%rdi)
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; EGPR-NEXT: retq
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;
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; NOMOVBE-LABEL: test1:
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; NOMOVBE: # %bb.0:
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; NOMOVBE-NEXT: rolw $8, %si, %ax # encoding: [0x62,0xf4,0x7d,0x18,0xc1,0xc6,0x08]
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; NOMOVBE-NEXT: movw %ax, (%rdi) # encoding: [0x66,0x89,0x07]
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; NOMOVBE-NEXT: retq # encoding: [0xc3]
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%bswap = call i16 @llvm.bswap.i16(i16 %y)
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store i16 %bswap, ptr %x, align 2
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ret void
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}
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define i16 @test2(ptr %x) nounwind {
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; CHECK-LABEL: test2:
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; CHECK: # %bb.0:
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; CHECK-NEXT: movbew (%rdi), %ax
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; CHECK-NEXT: nop
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; CHECK-NEXT: nop
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; CHECK-NEXT: nop
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; CHECK-NEXT: nop
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; CHECK-NEXT: nop
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; CHECK-NEXT: nop
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; CHECK-NEXT: retq
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;
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; SLM-LABEL: test2:
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; SLM: # %bb.0:
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; SLM-NEXT: movbew (%rdi), %ax
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; SLM-NEXT: retq
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;
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; EGPR-LABEL: test2:
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; EGPR: # %bb.0:
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; EGPR-NEXT: movbew (%rdi), %ax
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; EGPR-NEXT: retq
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;
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; NOMOVBE-LABEL: test2:
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; NOMOVBE: # %bb.0:
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; NOMOVBE-NEXT: rolw $8, (%rdi), %ax # encoding: [0x62,0xf4,0x7d,0x18,0xc1,0x07,0x08]
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; NOMOVBE-NEXT: retq # encoding: [0xc3]
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%load = load i16, ptr %x, align 2
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%bswap = call i16 @llvm.bswap.i16(i16 %load)
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ret i16 %bswap
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}
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define void @test3(ptr nocapture %x, i32 %y) nounwind {
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; CHECK-LABEL: test3:
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; CHECK: # %bb.0:
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; CHECK-NEXT: movbel %esi, (%rdi)
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; CHECK-NEXT: nop
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; CHECK-NEXT: nop
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; CHECK-NEXT: nop
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; CHECK-NEXT: nop
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; CHECK-NEXT: nop
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; CHECK-NEXT: nop
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; CHECK-NEXT: retq
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;
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; SLM-LABEL: test3:
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; SLM: # %bb.0:
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; SLM-NEXT: movbel %esi, (%rdi)
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; SLM-NEXT: retq
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;
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; EGPR-LABEL: test3:
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; EGPR: # %bb.0:
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; EGPR-NEXT: movbel %esi, (%rdi)
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; EGPR-NEXT: retq
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;
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; NOMOVBE-LABEL: test3:
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; NOMOVBE: # %bb.0:
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; NOMOVBE-NEXT: bswapl %esi # encoding: [0x0f,0xce]
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; NOMOVBE-NEXT: movl %esi, (%rdi) # encoding: [0x89,0x37]
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; NOMOVBE-NEXT: retq # encoding: [0xc3]
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%bswap = call i32 @llvm.bswap.i32(i32 %y)
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store i32 %bswap, ptr %x, align 4
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ret void
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}
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define i32 @test4(ptr %x) nounwind {
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; CHECK-LABEL: test4:
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; CHECK: # %bb.0:
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; CHECK-NEXT: movbel (%rdi), %eax
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; CHECK-NEXT: nop
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; CHECK-NEXT: nop
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; CHECK-NEXT: nop
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; CHECK-NEXT: nop
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; CHECK-NEXT: nop
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; CHECK-NEXT: nop
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; CHECK-NEXT: retq
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;
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; SLM-LABEL: test4:
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; SLM: # %bb.0:
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; SLM-NEXT: movbel (%rdi), %eax
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; SLM-NEXT: retq
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;
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; EGPR-LABEL: test4:
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; EGPR: # %bb.0:
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; EGPR-NEXT: movbel (%rdi), %eax
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; EGPR-NEXT: retq
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;
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; NOMOVBE-LABEL: test4:
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; NOMOVBE: # %bb.0:
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; NOMOVBE-NEXT: movl (%rdi), %eax # encoding: [0x8b,0x07]
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; NOMOVBE-NEXT: bswapl %eax # encoding: [0x0f,0xc8]
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; NOMOVBE-NEXT: retq # encoding: [0xc3]
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%load = load i32, ptr %x, align 4
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%bswap = call i32 @llvm.bswap.i32(i32 %load)
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ret i32 %bswap
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}
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define void @test5(ptr %x, i64 %y) nounwind {
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; CHECK-LABEL: test5:
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; CHECK: # %bb.0:
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; CHECK-NEXT: movbeq %rsi, (%rdi)
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; CHECK-NEXT: nop
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; CHECK-NEXT: nop
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; CHECK-NEXT: nop
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; CHECK-NEXT: nop
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; CHECK-NEXT: nop
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; CHECK-NEXT: nop
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; CHECK-NEXT: retq
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;
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; SLM-LABEL: test5:
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; SLM: # %bb.0:
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; SLM-NEXT: movbeq %rsi, (%rdi)
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; SLM-NEXT: retq
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;
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; EGPR-LABEL: test5:
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; EGPR: # %bb.0:
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; EGPR-NEXT: movbeq %rsi, (%rdi)
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; EGPR-NEXT: retq
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;
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; NOMOVBE-LABEL: test5:
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; NOMOVBE: # %bb.0:
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; NOMOVBE-NEXT: bswapq %rsi # encoding: [0x48,0x0f,0xce]
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; NOMOVBE-NEXT: movq %rsi, (%rdi) # encoding: [0x48,0x89,0x37]
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; NOMOVBE-NEXT: retq # encoding: [0xc3]
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%bswap = call i64 @llvm.bswap.i64(i64 %y)
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store i64 %bswap, ptr %x, align 8
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ret void
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}
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define i64 @test6(ptr %x) nounwind {
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; CHECK-LABEL: test6:
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; CHECK: # %bb.0:
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; CHECK-NEXT: movbeq (%rdi), %rax
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; CHECK-NEXT: nop
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; CHECK-NEXT: nop
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; CHECK-NEXT: nop
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; CHECK-NEXT: nop
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; CHECK-NEXT: nop
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; CHECK-NEXT: nop
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; CHECK-NEXT: retq
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;
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; SLM-LABEL: test6:
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; SLM: # %bb.0:
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; SLM-NEXT: movbeq (%rdi), %rax
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; SLM-NEXT: retq
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;
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; EGPR-LABEL: test6:
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; EGPR: # %bb.0:
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; EGPR-NEXT: movbeq (%rdi), %rax
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; EGPR-NEXT: retq
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;
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; NOMOVBE-LABEL: test6:
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; NOMOVBE: # %bb.0:
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; NOMOVBE-NEXT: movq (%rdi), %rax # encoding: [0x48,0x8b,0x07]
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; NOMOVBE-NEXT: bswapq %rax # encoding: [0x48,0x0f,0xc8]
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; NOMOVBE-NEXT: retq # encoding: [0xc3]
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%load = load i64, ptr %x, align 8
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%bswap = call i64 @llvm.bswap.i64(i64 %load)
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ret i64 %bswap
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}
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define i64 @test7(i64 %x) nounwind {
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; CHECK-LABEL: test7:
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; CHECK: # %bb.0:
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; CHECK-NEXT: movq %rdi, %rax
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; CHECK-NEXT: bswapq %rax
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; CHECK-NEXT: nop
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; CHECK-NEXT: nop
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; CHECK-NEXT: nop
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; CHECK-NEXT: nop
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; CHECK-NEXT: retq
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;
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; SLM-LABEL: test7:
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; SLM: # %bb.0:
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; SLM-NEXT: movq %rdi, %rax
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; SLM-NEXT: bswapq %rax
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; SLM-NEXT: retq
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;
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; EGPR-LABEL: test7:
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; EGPR: # %bb.0:
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; EGPR-NEXT: movbeq %rdi, %rax
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; EGPR-NEXT: retq
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;
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; NOMOVBE-LABEL: test7:
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; NOMOVBE: # %bb.0:
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; NOMOVBE-NEXT: movq %rdi, %rax # encoding: [0x48,0x89,0xf8]
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; NOMOVBE-NEXT: bswapq %rax # encoding: [0x48,0x0f,0xc8]
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; NOMOVBE-NEXT: retq # encoding: [0xc3]
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%bswap = call i64 @llvm.bswap.i64(i64 %x)
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ret i64 %bswap
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}
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