derek.holloway
7502bf64a4
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251 lines
7.1 KiB
LLVM
251 lines
7.1 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -mtriple=x86_64 -relocation-model=static < %s | FileCheck --check-prefixes=STATIC %s
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; RUN: llc -mtriple=x86_64 -relocation-model=pic < %s | FileCheck --check-prefixes=PIC %s
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; RUN: llc -mtriple=x86_64 -code-model=medium -relocation-model=static < %s | FileCheck --check-prefixes=MSTATIC %s
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; RUN: llc -mtriple=x86_64 -code-model=medium -relocation-model=pic < %s | FileCheck --check-prefixes=MPIC %s
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@foo = internal global i32 0
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define dso_local i64 @zero() #0 {
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; STATIC-LABEL: zero:
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; STATIC: # %bb.0: # %entry
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; STATIC-NEXT: movl $foo, %eax
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; STATIC-NEXT: retq
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;
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; PIC-LABEL: zero:
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; PIC: # %bb.0: # %entry
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; PIC-NEXT: leaq foo(%rip), %rax
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; PIC-NEXT: retq
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;
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; MSTATIC-LABEL: zero:
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; MSTATIC: # %bb.0: # %entry
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; MSTATIC-NEXT: movabsq $foo, %rax
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; MSTATIC-NEXT: retq
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;
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; MPIC-LABEL: zero:
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; MPIC: # %bb.0: # %entry
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; MPIC-NEXT: leaq _GLOBAL_OFFSET_TABLE_(%rip), %rcx
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; MPIC-NEXT: movabsq $foo@GOTOFF, %rax
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; MPIC-NEXT: addq %rcx, %rax
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; MPIC-NEXT: retq
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entry:
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ret i64 add (i64 ptrtoint (ptr @foo to i64), i64 0)
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}
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define dso_local i64 @one() #0 {
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; STATIC-LABEL: one:
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; STATIC: # %bb.0: # %entry
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; STATIC-NEXT: movl $foo+1, %eax
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; STATIC-NEXT: retq
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;
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; PIC-LABEL: one:
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; PIC: # %bb.0: # %entry
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; PIC-NEXT: leaq foo+1(%rip), %rax
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; PIC-NEXT: retq
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;
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; MSTATIC-LABEL: one:
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; MSTATIC: # %bb.0: # %entry
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; MSTATIC-NEXT: movabsq $foo+1, %rax
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; MSTATIC-NEXT: retq
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;
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; MPIC-LABEL: one:
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; MPIC: # %bb.0: # %entry
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; MPIC-NEXT: leaq _GLOBAL_OFFSET_TABLE_(%rip), %rax
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; MPIC-NEXT: movabsq $foo@GOTOFF, %rcx
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; MPIC-NEXT: leaq 1(%rax,%rcx), %rax
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; MPIC-NEXT: retq
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entry:
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ret i64 add (i64 ptrtoint (ptr @foo to i64), i64 1)
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}
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;; Check we don't fold a large offset into leaq, otherwise
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;; the large r_addend can easily cause a relocation overflow.
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define dso_local i64 @large() #0 {
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; STATIC-LABEL: large:
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; STATIC: # %bb.0: # %entry
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; STATIC-NEXT: movl $1701208431, %eax # imm = 0x6566616F
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; STATIC-NEXT: leaq foo(%rax), %rax
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; STATIC-NEXT: retq
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;
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; PIC-LABEL: large:
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; PIC: # %bb.0: # %entry
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; PIC-NEXT: leaq foo(%rip), %rax
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; PIC-NEXT: addq $1701208431, %rax # imm = 0x6566616F
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; PIC-NEXT: retq
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;
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; MSTATIC-LABEL: large:
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; MSTATIC: # %bb.0: # %entry
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; MSTATIC-NEXT: movabsq $foo, %rax
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; MSTATIC-NEXT: addq $1701208431, %rax # imm = 0x6566616F
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; MSTATIC-NEXT: retq
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;
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; MPIC-LABEL: large:
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; MPIC: # %bb.0: # %entry
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; MPIC-NEXT: leaq _GLOBAL_OFFSET_TABLE_(%rip), %rax
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; MPIC-NEXT: movabsq $foo@GOTOFF, %rcx
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; MPIC-NEXT: leaq 1701208431(%rax,%rcx), %rax
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; MPIC-NEXT: retq
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entry:
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ret i64 add (i64 ptrtoint (ptr @foo to i64), i64 1701208431)
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}
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;; Test we don't emit movl foo-1, %eax. ELF R_X86_64_32 does not allow
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;; a negative value.
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define dso_local i64 @neg_1() #0 {
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; STATIC-LABEL: neg_1:
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; STATIC: # %bb.0: # %entry
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; STATIC-NEXT: leaq foo-1(%rip), %rax
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; STATIC-NEXT: retq
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;
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; PIC-LABEL: neg_1:
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; PIC: # %bb.0: # %entry
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; PIC-NEXT: leaq foo-1(%rip), %rax
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; PIC-NEXT: retq
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;
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; MSTATIC-LABEL: neg_1:
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; MSTATIC: # %bb.0: # %entry
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; MSTATIC-NEXT: movabsq $foo, %rax
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; MSTATIC-NEXT: decq %rax
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; MSTATIC-NEXT: retq
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;
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; MPIC-LABEL: neg_1:
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; MPIC: # %bb.0: # %entry
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; MPIC-NEXT: leaq _GLOBAL_OFFSET_TABLE_(%rip), %rax
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; MPIC-NEXT: movabsq $foo@GOTOFF, %rcx
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; MPIC-NEXT: leaq -1(%rax,%rcx), %rax
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; MPIC-NEXT: retq
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entry:
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ret i64 add (i64 ptrtoint (ptr @foo to i64), i64 -1)
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}
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;; Test we don't emit movl foo-2147483648, %eax. ELF R_X86_64_32 does not allow
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;; a negative value.
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define dso_local i64 @neg_0x80000000() #0 {
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; STATIC-LABEL: neg_0x80000000:
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; STATIC: # %bb.0: # %entry
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; STATIC-NEXT: leaq foo-2147483648(%rip), %rax
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; STATIC-NEXT: retq
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;
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; PIC-LABEL: neg_0x80000000:
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; PIC: # %bb.0: # %entry
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; PIC-NEXT: leaq foo-2147483648(%rip), %rax
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; PIC-NEXT: retq
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;
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; MSTATIC-LABEL: neg_0x80000000:
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; MSTATIC: # %bb.0: # %entry
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; MSTATIC-NEXT: movabsq $foo, %rax
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; MSTATIC-NEXT: addq $-2147483648, %rax # imm = 0x80000000
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; MSTATIC-NEXT: retq
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;
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; MPIC-LABEL: neg_0x80000000:
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; MPIC: # %bb.0: # %entry
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; MPIC-NEXT: leaq _GLOBAL_OFFSET_TABLE_(%rip), %rax
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; MPIC-NEXT: movabsq $foo@GOTOFF, %rcx
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; MPIC-NEXT: leaq -2147483648(%rax,%rcx), %rax
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; MPIC-NEXT: retq
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entry:
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ret i64 add (i64 ptrtoint (ptr @foo to i64), i64 -2147483648)
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}
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define dso_local i64 @neg_0x80000001() #0 {
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; STATIC-LABEL: neg_0x80000001:
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; STATIC: # %bb.0: # %entry
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; STATIC-NEXT: movabsq $-2147483649, %rax # imm = 0xFFFFFFFF7FFFFFFF
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; STATIC-NEXT: leaq foo(%rax), %rax
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; STATIC-NEXT: retq
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;
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; PIC-LABEL: neg_0x80000001:
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; PIC: # %bb.0: # %entry
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; PIC-NEXT: leaq foo(%rip), %rcx
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; PIC-NEXT: movabsq $-2147483649, %rax # imm = 0xFFFFFFFF7FFFFFFF
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; PIC-NEXT: addq %rcx, %rax
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; PIC-NEXT: retq
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;
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; MSTATIC-LABEL: neg_0x80000001:
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; MSTATIC: # %bb.0: # %entry
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; MSTATIC-NEXT: movabsq $-2147483649, %rcx # imm = 0xFFFFFFFF7FFFFFFF
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; MSTATIC-NEXT: movabsq $foo, %rax
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; MSTATIC-NEXT: addq %rcx, %rax
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; MSTATIC-NEXT: retq
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;
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; MPIC-LABEL: neg_0x80000001:
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; MPIC: # %bb.0: # %entry
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; MPIC-NEXT: leaq _GLOBAL_OFFSET_TABLE_(%rip), %rax
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; MPIC-NEXT: movabsq $foo@GOTOFF, %rcx
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; MPIC-NEXT: addq %rax, %rcx
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; MPIC-NEXT: movabsq $-2147483649, %rax # imm = 0xFFFFFFFF7FFFFFFF
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; MPIC-NEXT: addq %rcx, %rax
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; MPIC-NEXT: retq
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entry:
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ret i64 add (i64 ptrtoint (ptr @foo to i64), i64 -2147483649)
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}
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define internal void @bar() #0 {
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; STATIC-LABEL: bar:
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; STATIC: # %bb.0:
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; STATIC-NEXT: retq
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;
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; PIC-LABEL: bar:
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; PIC: # %bb.0:
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; PIC-NEXT: retq
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;
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; MSTATIC-LABEL: bar:
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; MSTATIC: # %bb.0:
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; MSTATIC-NEXT: retq
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;
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; MPIC-LABEL: bar:
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; MPIC: # %bb.0:
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; MPIC-NEXT: retq
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ret void
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}
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define dso_local i64 @fun_neg_0xfeffffff() #0 {
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; STATIC-LABEL: fun_neg_0xfeffffff:
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; STATIC: # %bb.0:
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; STATIC-NEXT: movl $bar, %eax
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; STATIC-NEXT: addq $-16777217, %rax # imm = 0xFEFFFFFF
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; STATIC-NEXT: retq
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;
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; PIC-LABEL: fun_neg_0xfeffffff:
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; PIC: # %bb.0:
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; PIC-NEXT: leaq bar-16777217(%rip), %rax
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; PIC-NEXT: retq
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;
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; MSTATIC-LABEL: fun_neg_0xfeffffff:
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; MSTATIC: # %bb.0:
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; MSTATIC-NEXT: movl $bar, %eax
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; MSTATIC-NEXT: addq $-16777217, %rax # imm = 0xFEFFFFFF
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; MSTATIC-NEXT: retq
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;
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; MPIC-LABEL: fun_neg_0xfeffffff:
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; MPIC: # %bb.0:
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; MPIC-NEXT: leaq bar-16777217(%rip), %rax
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; MPIC-NEXT: retq
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ret i64 add (i64 ptrtoint (ptr @bar to i64), i64 -16777217)
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}
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define dso_local i64 @fun_neg_ff000000() #0 {
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; STATIC-LABEL: fun_neg_ff000000:
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; STATIC: # %bb.0:
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; STATIC-NEXT: leaq bar-16777216(%rip), %rax
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; STATIC-NEXT: retq
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;
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; PIC-LABEL: fun_neg_ff000000:
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; PIC: # %bb.0:
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; PIC-NEXT: leaq bar-16777216(%rip), %rax
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; PIC-NEXT: retq
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;
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; MSTATIC-LABEL: fun_neg_ff000000:
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; MSTATIC: # %bb.0:
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; MSTATIC-NEXT: leaq bar-16777216(%rip), %rax
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; MSTATIC-NEXT: retq
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;
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; MPIC-LABEL: fun_neg_ff000000:
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; MPIC: # %bb.0:
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; MPIC-NEXT: leaq bar-16777216(%rip), %rax
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; MPIC-NEXT: retq
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ret i64 add (i64 ptrtoint (ptr @bar to i64), i64 -16777216)
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}
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attributes #0 = { nounwind }
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