| ; RUN: llc -mtriple=x86_64 -relocation-model=static < %s | FileCheck --check-prefixes=CHECK,STATIC %s |
| ; RUN: llc -mtriple=x86_64 -relocation-model=pic < %s | FileCheck --check-prefixes=CHECK,PIC %s |
| ; RUN: llc -mtriple=x86_64 -code-model=medium -relocation-model=static < %s | FileCheck --check-prefixes=CHECK,MSTATIC %s |
| ; RUN: llc -mtriple=x86_64 -code-model=medium -relocation-model=pic < %s | FileCheck --check-prefixes=CHECK,MPIC %s |
| |
| @foo = internal global i32 0 |
| |
| define dso_local i64 @zero() #0 { |
| ; CHECK-LABEL: zero: |
| ; CHECK: # %bb.0: |
| ; STATIC-NEXT: movl $foo, %eax |
| ; STATIC-NEXT: retq |
| ; PIC-NEXT: leaq foo(%rip), %rax |
| ; PIC-NEXT: retq |
| ; MSTATIC-NEXT: movabsq $foo, %rax |
| ; MSTATIC-NEXT: retq |
| ; MPIC-NEXT: leaq _GLOBAL_OFFSET_TABLE_(%rip), %rcx |
| ; MPIC-NEXT: movabsq $foo@GOTOFF, %rax |
| ; MPIC-NEXT: addq %rcx, %rax |
| entry: |
| ret i64 add (i64 ptrtoint (ptr @foo to i64), i64 0) |
| } |
| |
| define dso_local i64 @one() #0 { |
| ; CHECK-LABEL: one: |
| ; CHECK: # %bb.0: |
| ; STATIC-NEXT: movl $foo+1, %eax |
| ; PIC-NEXT: leaq foo+1(%rip), %rax |
| ; MSTATIC-NEXT: movabsq $foo, %rax |
| ; MSTATIC-NEXT: incq %rax |
| ; MPIC-NEXT: leaq _GLOBAL_OFFSET_TABLE_(%rip), %rax |
| ; MPIC-NEXT: movabsq $foo@GOTOFF, %rcx |
| ; MPIC-NEXT: leaq 1(%rax,%rcx), %rax |
| entry: |
| ret i64 add (i64 ptrtoint (ptr @foo to i64), i64 1) |
| } |
| |
| ;; Check we don't fold a large offset into leaq, otherwise |
| ;; the large r_addend can easily cause a relocation overflow. |
| define dso_local i64 @large() #0 { |
| ; CHECK-LABEL: large: |
| ; CHECK: # %bb.0: |
| ; STATIC-NEXT: movl $1701208431, %eax |
| ; STATIC-NEXT: leaq foo(%rax), %rax |
| ; PIC-NEXT: leaq foo(%rip), %rax |
| ; PIC-NEXT: addq $1701208431, %rax |
| ; MSTATIC-NEXT: movabsq $foo, %rax |
| ; MSTATIC-NEXT: addq $1701208431, %rax |
| ; MSTATIC-NEXT: retq |
| ; MPIC-NEXT: leaq _GLOBAL_OFFSET_TABLE_(%rip), %rax |
| ; MPIC-NEXT: movabsq $foo@GOTOFF, %rcx |
| ; MPIC-NEXT: leaq 1701208431(%rax,%rcx), %rax |
| entry: |
| ret i64 add (i64 ptrtoint (ptr @foo to i64), i64 1701208431) |
| } |
| |
| ;; Test we don't emit movl foo-1, %eax. ELF R_X86_64_32 does not allow |
| ;; a negative value. |
| define dso_local i64 @neg_1() #0 { |
| ; CHECK-LABEL: neg_1: |
| ; CHECK: # %bb.0: |
| ; STATIC-NEXT: leaq foo-1(%rip), %rax |
| ; PIC-NEXT: leaq foo-1(%rip), %rax |
| ; MSTATIC-NEXT: movabsq $foo, %rax |
| ; MSTATIC-NEXT: decq %rax |
| ; MPIC-NEXT: leaq _GLOBAL_OFFSET_TABLE_(%rip), %rax |
| ; MPIC-NEXT: movabsq $foo@GOTOFF, %rcx |
| ; MPIC-NEXT: leaq -1(%rax,%rcx), %rax |
| entry: |
| ret i64 add (i64 ptrtoint (ptr @foo to i64), i64 -1) |
| } |
| |
| ;; Test we don't emit movl foo-2147483648, %eax. ELF R_X86_64_32 does not allow |
| ;; a negative value. |
| define dso_local i64 @neg_0x80000000() #0 { |
| ; CHECK-LABEL: neg_0x80000000: |
| ; CHECK: # %bb.0: |
| ; STATIC-NEXT: leaq foo-2147483648(%rip), %rax |
| ; PIC-NEXT: leaq foo-2147483648(%rip), %rax |
| ; MSTATIC-NEXT: movabsq $foo, %rax |
| ; MSTATIC-NEXT: addq $-2147483648, %rax |
| ; MPIC-NEXT: leaq _GLOBAL_OFFSET_TABLE_(%rip), %rax |
| ; MPIC-NEXT: movabsq $foo@GOTOFF, %rcx |
| ; MPIC-NEXT: leaq -2147483648(%rax,%rcx), %rax |
| entry: |
| ret i64 add (i64 ptrtoint (ptr @foo to i64), i64 -2147483648) |
| } |
| |
| define dso_local i64 @neg_0x80000001() #0 { |
| ; CHECK-LABEL: neg_0x80000001: |
| ; CHECK: # %bb.0: |
| ; STATIC-NEXT: movabsq $-2147483649, %rax |
| ; STATIC-NEXT: leaq foo(%rax), %rax |
| ; PIC-NEXT: leaq foo(%rip), %rcx |
| ; PIC-NEXT: movabsq $-2147483649, %rax |
| ; PIC-NEXT: addq %rcx, %rax |
| ; MSTATIC-NEXT: movabsq $-2147483649, %rcx |
| ; MSTATIC-NEXT: movabsq $foo, %rax |
| ; MSTATIC-NEXT: addq %rcx, %rax |
| ; MPIC-NEXT: leaq _GLOBAL_OFFSET_TABLE_(%rip), %rax |
| ; MPIC-NEXT: movabsq $foo@GOTOFF, %rcx |
| ; MPIC-NEXT: addq %rax, %rcx |
| ; MPIC-NEXT: movabsq $-2147483649, %rax |
| ; MPIC-NEXT: addq %rcx, %rax |
| entry: |
| ret i64 add (i64 ptrtoint (ptr @foo to i64), i64 -2147483649) |
| } |
| |
| attributes #0 = { nounwind } |