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Fix an x86 code size regression: prefer RIP-relative addressing

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over absolute addressing even in non-PIC mode (unless the address
has an index or something else incompatible), because it has a
smaller encoding.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79553 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman 2009-08-20 18:23:44 +00:00
parent 073f5b669d
commit ef74e9bf2a
4 changed files with 91 additions and 75 deletions
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13
lib/Target/X86/X86ISelDAGToDAG.cpp
View File

@ -813,6 +813,19 @@ bool X86DAGToDAGISel::MatchAddress(SDValue N, X86ISelAddressMode &AM) {
AM.Scale = 1;
}
// Post-processing: Convert foo to foo(%rip), even in non-PIC mode,
// because it has a smaller encoding.
// TODO: Which other code models can use this?
if (TM.getCodeModel() == CodeModel::Small &&
Subtarget->is64Bit() &&
AM.Scale == 1 &&
AM.BaseType == X86ISelAddressMode::RegBase &&
AM.Base.Reg.getNode() == 0 &&
AM.IndexReg.getNode() == 0 &&
AM.SymbolFlags == 0 &&
AM.hasSymbolicDisplacement())
AM.Base.Reg = CurDAG->getRegister(X86::RIP, MVT::i64);
return false;
}

138
test/CodeGen/X86/abi-isel.ll
View File

@ -191,7 +191,7 @@ entry:
ret void
; LINUX-64-STATIC: foo00:
; LINUX-64-STATIC: movl src, %eax
; LINUX-64-STATIC: movl src(%rip), %eax
; LINUX-64-STATIC: movl %eax, dst
; LINUX-64-STATIC: ret
}
@ -203,7 +203,7 @@ entry:
ret void
; LINUX-64-STATIC: fxo00:
; LINUX-64-STATIC: movl xsrc, %eax
; LINUX-64-STATIC: movl xsrc(%rip), %eax
; LINUX-64-STATIC: movl %eax, xdst
; LINUX-64-STATIC: ret
}
@ -233,8 +233,8 @@ entry:
store i32 %1, i32* %0, align 4
ret void
; LINUX-64-STATIC: foo02:
; LINUX-64-STATIC: movl src, %
; LINUX-64-STATIC: movq ptr, %
; LINUX-64-STATIC: movl src(%rip), %
; LINUX-64-STATIC: movq ptr(%rip), %
; LINUX-64-STATIC: movl
; LINUX-64-STATIC: ret
}
@ -245,8 +245,8 @@ entry:
%1 = load i32* getelementptr ([32 x i32]* @xsrc, i32 0, i64 0), align 4
store i32 %1, i32* %0, align 4
; LINUX-64-STATIC: fxo02:
; LINUX-64-STATIC: movl xsrc, %
; LINUX-64-STATIC: movq ptr, %
; LINUX-64-STATIC: movl xsrc(%rip), %
; LINUX-64-STATIC: movq ptr(%rip), %
; LINUX-64-STATIC: movl
; LINUX-64-STATIC: ret
ret void
@ -258,7 +258,7 @@ entry:
store i32 %0, i32* getelementptr ([131072 x i32]* @ddst, i32 0, i64 0), align 32
ret void
; LINUX-64-STATIC: foo03:
; LINUX-64-STATIC: movl dsrc, %eax
; LINUX-64-STATIC: movl dsrc(%rip), %eax
; LINUX-64-STATIC: movl %eax, ddst
; LINUX-64-STATIC: ret
}
@ -279,8 +279,8 @@ entry:
store i32 %1, i32* %0, align 4
ret void
; LINUX-64-STATIC: foo05:
; LINUX-64-STATIC: movl dsrc, %
; LINUX-64-STATIC: movq dptr, %
; LINUX-64-STATIC: movl dsrc(%rip), %
; LINUX-64-STATIC: movq dptr(%rip), %
; LINUX-64-STATIC: movl
; LINUX-64-STATIC: ret
}
@ -291,8 +291,8 @@ entry:
store i32 %0, i32* getelementptr ([131072 x i32]* @ldst, i32 0, i64 0), align 4
ret void
; LINUX-64-STATIC: foo06:
; LINUX-64-STATIC: movl lsrc, %eax
; LINUX-64-STATIC: movl %eax, ldst
; LINUX-64-STATIC: movl lsrc(%rip), %eax
; LINUX-64-STATIC: movl %eax, ldst(%rip)
; LINUX-64-STATIC: ret
}
@ -312,8 +312,8 @@ entry:
store i32 %1, i32* %0, align 4
ret void
; LINUX-64-STATIC: foo08:
; LINUX-64-STATIC: movl lsrc, %
; LINUX-64-STATIC: movq lptr, %
; LINUX-64-STATIC: movl lsrc(%rip), %
; LINUX-64-STATIC: movq lptr(%rip), %
; LINUX-64-STATIC: movl
; LINUX-64-STATIC: ret
}
@ -324,8 +324,8 @@ entry:
store i32 %0, i32* getelementptr ([131072 x i32]* @dst, i32 0, i64 16), align 4
ret void
; LINUX-64-STATIC: qux00:
; LINUX-64-STATIC: movl src+64, %eax
; LINUX-64-STATIC: movl %eax, dst+64
; LINUX-64-STATIC: movl src+64(%rip), %eax
; LINUX-64-STATIC: movl %eax, dst+64(%rip)
; LINUX-64-STATIC: ret
}
@ -335,8 +335,8 @@ entry:
store i32 %0, i32* getelementptr ([32 x i32]* @xdst, i32 0, i64 16), align 4
ret void
; LINUX-64-STATIC: qxx00:
; LINUX-64-STATIC: movl xsrc+64, %eax
; LINUX-64-STATIC: movl %eax, xdst+64
; LINUX-64-STATIC: movl xsrc+64(%rip), %eax
; LINUX-64-STATIC: movl %eax, xdst+64(%rip)
; LINUX-64-STATIC: ret
}
@ -365,8 +365,8 @@ entry:
%2 = getelementptr i32* %0, i64 16
store i32 %1, i32* %2, align 4
; LINUX-64-STATIC: qux02:
; LINUX-64-STATIC: movl src+64, %eax
; LINUX-64-STATIC: movq ptr, %rcx
; LINUX-64-STATIC: movl src+64(%rip), %eax
; LINUX-64-STATIC: movq ptr(%rip), %rcx
; LINUX-64-STATIC: movl %eax, 64(%rcx)
; LINUX-64-STATIC: ret
ret void
@ -379,8 +379,8 @@ entry:
%2 = getelementptr i32* %0, i64 16
store i32 %1, i32* %2, align 4
; LINUX-64-STATIC: qxx02:
; LINUX-64-STATIC: movl xsrc+64, %eax
; LINUX-64-STATIC: movq ptr, %rcx
; LINUX-64-STATIC: movl xsrc+64(%rip), %eax
; LINUX-64-STATIC: movq ptr(%rip), %rcx
; LINUX-64-STATIC: movl %eax, 64(%rcx)
; LINUX-64-STATIC: ret
ret void
@ -392,8 +392,8 @@ entry:
store i32 %0, i32* getelementptr ([131072 x i32]* @ddst, i32 0, i64 16), align 32
ret void
; LINUX-64-STATIC: qux03:
; LINUX-64-STATIC: movl dsrc+64, %eax
; LINUX-64-STATIC: movl %eax, ddst+64
; LINUX-64-STATIC: movl dsrc+64(%rip), %eax
; LINUX-64-STATIC: movl %eax, ddst+64(%rip)
; LINUX-64-STATIC: ret
}
@ -402,7 +402,7 @@ entry:
store i32* getelementptr ([131072 x i32]* @ddst, i32 0, i64 16), i32** @dptr, align 8
ret void
; LINUX-64-STATIC: qux04:
; LINUX-64-STATIC: movq $ddst+64, dptr
; LINUX-64-STATIC: movq $ddst+64, dptr(%rip)
; LINUX-64-STATIC: ret
}
@ -413,8 +413,8 @@ entry:
%2 = getelementptr i32* %0, i64 16
store i32 %1, i32* %2, align 4
; LINUX-64-STATIC: qux05:
; LINUX-64-STATIC: movl dsrc+64, %eax
; LINUX-64-STATIC: movq dptr, %rcx
; LINUX-64-STATIC: movl dsrc+64(%rip), %eax
; LINUX-64-STATIC: movq dptr(%rip), %rcx
; LINUX-64-STATIC: movl %eax, 64(%rcx)
; LINUX-64-STATIC: ret
ret void
@ -426,7 +426,7 @@ entry:
store i32 %0, i32* getelementptr ([131072 x i32]* @ldst, i32 0, i64 16), align 4
ret void
; LINUX-64-STATIC: qux06:
; LINUX-64-STATIC: movl lsrc+64, %eax
; LINUX-64-STATIC: movl lsrc+64(%rip), %eax
; LINUX-64-STATIC: movl %eax, ldst+64
; LINUX-64-STATIC: ret
}
@ -447,8 +447,8 @@ entry:
%2 = getelementptr i32* %0, i64 16
store i32 %1, i32* %2, align 4
; LINUX-64-STATIC: qux08:
; LINUX-64-STATIC: movl lsrc+64, %eax
; LINUX-64-STATIC: movq lptr, %rcx
; LINUX-64-STATIC: movl lsrc+64(%rip), %eax
; LINUX-64-STATIC: movq lptr(%rip), %rcx
; LINUX-64-STATIC: movl %eax, 64(%rcx)
; LINUX-64-STATIC: ret
ret void
@ -512,7 +512,7 @@ entry:
ret void
; LINUX-64-STATIC: ind02:
; LINUX-64-STATIC: movl src(,%rdi,4), %eax
; LINUX-64-STATIC: movq ptr, %rcx
; LINUX-64-STATIC: movq ptr(%rip), %rcx
; LINUX-64-STATIC: movl %eax, (%rcx,%rdi,4)
; LINUX-64-STATIC: ret
}
@ -527,7 +527,7 @@ entry:
ret void
; LINUX-64-STATIC: ixd02:
; LINUX-64-STATIC: movl xsrc(,%rdi,4), %eax
; LINUX-64-STATIC: movq ptr, %rcx
; LINUX-64-STATIC: movq ptr(%rip), %rcx
; LINUX-64-STATIC: movl %eax, (%rcx,%rdi,4)
; LINUX-64-STATIC: ret
}
@ -566,7 +566,7 @@ entry:
ret void
; LINUX-64-STATIC: ind05:
; LINUX-64-STATIC: movl dsrc(,%rdi,4), %eax
; LINUX-64-STATIC: movq dptr, %rcx
; LINUX-64-STATIC: movq dptr(%rip), %rcx
; LINUX-64-STATIC: movl %eax, (%rcx,%rdi,4)
; LINUX-64-STATIC: ret
}
@ -605,7 +605,7 @@ entry:
ret void
; LINUX-64-STATIC: ind08:
; LINUX-64-STATIC: movl lsrc(,%rdi,4), %eax
; LINUX-64-STATIC: movq lptr, %rcx
; LINUX-64-STATIC: movq lptr(%rip), %rcx
; LINUX-64-STATIC: movl %eax, (%rcx,%rdi,4)
; LINUX-64-STATIC: ret
}
@ -673,7 +673,7 @@ entry:
ret void
; LINUX-64-STATIC: off02:
; LINUX-64-STATIC: movl src+64(,%rdi,4), %eax
; LINUX-64-STATIC: movq ptr, %rcx
; LINUX-64-STATIC: movq ptr(%rip), %rcx
; LINUX-64-STATIC: movl %eax, 64(%rcx,%rdi,4)
; LINUX-64-STATIC: ret
}
@ -689,7 +689,7 @@ entry:
ret void
; LINUX-64-STATIC: oxf02:
; LINUX-64-STATIC: movl xsrc+64(,%rdi,4), %eax
; LINUX-64-STATIC: movq ptr, %rcx
; LINUX-64-STATIC: movq ptr(%rip), %rcx
; LINUX-64-STATIC: movl %eax, 64(%rcx,%rdi,4)
; LINUX-64-STATIC: ret
}
@ -731,7 +731,7 @@ entry:
ret void
; LINUX-64-STATIC: off05:
; LINUX-64-STATIC: movl dsrc+64(,%rdi,4), %eax
; LINUX-64-STATIC: movq dptr, %rcx
; LINUX-64-STATIC: movq dptr(%rip), %rcx
; LINUX-64-STATIC: movl %eax, 64(%rcx,%rdi,4)
; LINUX-64-STATIC: ret
}
@ -773,7 +773,7 @@ entry:
ret void
; LINUX-64-STATIC: off08:
; LINUX-64-STATIC: movl lsrc+64(,%rdi,4), %eax
; LINUX-64-STATIC: movq lptr, %rcx
; LINUX-64-STATIC: movq lptr(%rip), %rcx
; LINUX-64-STATIC: movl %eax, 64(%rcx,%rdi,4)
; LINUX-64-STATIC: ret
}
@ -784,8 +784,8 @@ entry:
store i32 %0, i32* getelementptr ([131072 x i32]* @dst, i32 0, i64 65536), align 4
ret void
; LINUX-64-STATIC: moo00:
; LINUX-64-STATIC: movl src+262144, %eax
; LINUX-64-STATIC: movl %eax, dst+262144
; LINUX-64-STATIC: movl src+262144(%rip), %eax
; LINUX-64-STATIC: movl %eax, dst+262144(%rip)
; LINUX-64-STATIC: ret
}
@ -794,7 +794,7 @@ entry:
store i32* getelementptr ([131072 x i32]* @dst, i32 0, i64 65536), i32** @ptr, align 8
ret void
; LINUX-64-STATIC: moo01:
; LINUX-64-STATIC: movq $dst+262144, ptr
; LINUX-64-STATIC: movq $dst+262144, ptr(%rip)
; LINUX-64-STATIC: ret
}
@ -806,8 +806,8 @@ entry:
store i32 %1, i32* %2, align 4
ret void
; LINUX-64-STATIC: moo02:
; LINUX-64-STATIC: movl src+262144, %eax
; LINUX-64-STATIC: movq ptr, %rcx
; LINUX-64-STATIC: movl src+262144(%rip), %eax
; LINUX-64-STATIC: movq ptr(%rip), %rcx
; LINUX-64-STATIC: movl %eax, 262144(%rcx)
; LINUX-64-STATIC: ret
}
@ -818,8 +818,8 @@ entry:
store i32 %0, i32* getelementptr ([131072 x i32]* @ddst, i32 0, i64 65536), align 32
ret void
; LINUX-64-STATIC: moo03:
; LINUX-64-STATIC: movl dsrc+262144, %eax
; LINUX-64-STATIC: movl %eax, ddst+262144
; LINUX-64-STATIC: movl dsrc+262144(%rip), %eax
; LINUX-64-STATIC: movl %eax, ddst+262144(%rip)
; LINUX-64-STATIC: ret
}
@ -840,8 +840,8 @@ entry:
store i32 %1, i32* %2, align 4
ret void
; LINUX-64-STATIC: moo05:
; LINUX-64-STATIC: movl dsrc+262144, %eax
; LINUX-64-STATIC: movq dptr, %rcx
; LINUX-64-STATIC: movl dsrc+262144(%rip), %eax
; LINUX-64-STATIC: movq dptr(%rip), %rcx
; LINUX-64-STATIC: movl %eax, 262144(%rcx)
; LINUX-64-STATIC: ret
}
@ -852,8 +852,8 @@ entry:
store i32 %0, i32* getelementptr ([131072 x i32]* @ldst, i32 0, i64 65536), align 4
ret void
; LINUX-64-STATIC: moo06:
; LINUX-64-STATIC: movl lsrc+262144, %eax
; LINUX-64-STATIC: movl %eax, ldst+262144
; LINUX-64-STATIC: movl lsrc+262144(%rip), %eax
; LINUX-64-STATIC: movl %eax, ldst+262144(%rip)
; LINUX-64-STATIC: ret
}
@ -874,8 +874,8 @@ entry:
store i32 %1, i32* %2, align 4
ret void
; LINUX-64-STATIC: moo08:
; LINUX-64-STATIC: movl lsrc+262144, %eax
; LINUX-64-STATIC: movq lptr, %rcx
; LINUX-64-STATIC: movl lsrc+262144(%rip), %eax
; LINUX-64-STATIC: movq lptr(%rip), %rcx
; LINUX-64-STATIC: movl %eax, 262144(%rcx)
; LINUX-64-STATIC: ret
}
@ -902,7 +902,7 @@ entry:
ret void
; LINUX-64-STATIC: big01:
; LINUX-64-STATIC: leaq dst+262144(,%rdi,4), %rax
; LINUX-64-STATIC: movq %rax, ptr
; LINUX-64-STATIC: movq %rax, ptr(%rip)
; LINUX-64-STATIC: ret
}
@ -917,7 +917,7 @@ entry:
ret void
; LINUX-64-STATIC: big02:
; LINUX-64-STATIC: movl src+262144(,%rdi,4), %eax
; LINUX-64-STATIC: movq ptr, %rcx
; LINUX-64-STATIC: movq ptr(%rip), %rcx
; LINUX-64-STATIC: movl %eax, 262144(%rcx,%rdi,4)
; LINUX-64-STATIC: ret
}
@ -959,7 +959,7 @@ entry:
ret void
; LINUX-64-STATIC: big05:
; LINUX-64-STATIC: movl dsrc+262144(,%rdi,4), %eax
; LINUX-64-STATIC: movq dptr, %rcx
; LINUX-64-STATIC: movq dptr(%rip), %rcx
; LINUX-64-STATIC: movl %eax, 262144(%rcx,%rdi,4)
; LINUX-64-STATIC: ret
}
@ -1001,7 +1001,7 @@ entry:
ret void
; LINUX-64-STATIC: big08:
; LINUX-64-STATIC: movl lsrc+262144(,%rdi,4), %eax
; LINUX-64-STATIC: movq lptr, %rcx
; LINUX-64-STATIC: movq lptr(%rip), %rcx
; LINUX-64-STATIC: movl %eax, 262144(%rcx,%rdi,4)
; LINUX-64-STATIC: ret
}
@ -1132,7 +1132,7 @@ entry:
%1 = bitcast i32* %0 to i8*
ret i8* %1
; LINUX-64-STATIC: har02:
; LINUX-64-STATIC: movq ptr, %rax
; LINUX-64-STATIC: movq ptr(%rip), %rax
; LINUX-64-STATIC: ret
}
@ -1158,7 +1158,7 @@ entry:
%1 = bitcast i32* %0 to i8*
ret i8* %1
; LINUX-64-STATIC: har05:
; LINUX-64-STATIC: movq dptr, %rax
; LINUX-64-STATIC: movq dptr(%rip), %rax
; LINUX-64-STATIC: ret
}
@ -1184,7 +1184,7 @@ entry:
%1 = bitcast i32* %0 to i8*
ret i8* %1
; LINUX-64-STATIC: har08:
; LINUX-64-STATIC: movq lptr, %rax
; LINUX-64-STATIC: movq lptr(%rip), %rax
; LINUX-64-STATIC: ret
}
@ -1227,7 +1227,7 @@ entry:
%2 = bitcast i32* %1 to i8*
ret i8* %2
; LINUX-64-STATIC: bat02:
; LINUX-64-STATIC: movq ptr, %rax
; LINUX-64-STATIC: movq ptr(%rip), %rax
; LINUX-64-STATIC: addq $64, %rax
; LINUX-64-STATIC: ret
}
@ -1255,7 +1255,7 @@ entry:
%2 = bitcast i32* %1 to i8*
ret i8* %2
; LINUX-64-STATIC: bat05:
; LINUX-64-STATIC: movq dptr, %rax
; LINUX-64-STATIC: movq dptr(%rip), %rax
; LINUX-64-STATIC: addq $64, %rax
; LINUX-64-STATIC: ret
}
@ -1283,7 +1283,7 @@ entry:
%2 = bitcast i32* %1 to i8*
ret i8* %2
; LINUX-64-STATIC: bat08:
; LINUX-64-STATIC: movq lptr, %rax
; LINUX-64-STATIC: movq lptr(%rip), %rax
; LINUX-64-STATIC: addq $64, %rax
; LINUX-64-STATIC: ret
}
@ -1320,7 +1320,7 @@ entry:
ret i8* %2
; LINUX-64-STATIC: bam02:
; LINUX-64-STATIC: movl $262144, %eax
; LINUX-64-STATIC: addq ptr, %rax
; LINUX-64-STATIC: addq ptr(%rip), %rax
; LINUX-64-STATIC: ret
}
@ -1348,7 +1348,7 @@ entry:
ret i8* %2
; LINUX-64-STATIC: bam05:
; LINUX-64-STATIC: movl $262144, %eax
; LINUX-64-STATIC: addq dptr, %rax
; LINUX-64-STATIC: addq dptr(%rip), %rax
; LINUX-64-STATIC: ret
}
@ -1376,7 +1376,7 @@ entry:
ret i8* %2
; LINUX-64-STATIC: bam08:
; LINUX-64-STATIC: movl $262144, %eax
; LINUX-64-STATIC: addq lptr, %rax
; LINUX-64-STATIC: addq lptr(%rip), %rax
; LINUX-64-STATIC: ret
}
@ -1432,7 +1432,7 @@ entry:
%3 = bitcast i32* %2 to i8*
ret i8* %3
; LINUX-64-STATIC: cat02:
; LINUX-64-STATIC: movq ptr, %rax
; LINUX-64-STATIC: movq ptr(%rip), %rax
; LINUX-64-STATIC: leaq 64(%rax,%rdi,4), %rax
; LINUX-64-STATIC: ret
}
@ -1467,7 +1467,7 @@ entry:
%3 = bitcast i32* %2 to i8*
ret i8* %3
; LINUX-64-STATIC: cat05:
; LINUX-64-STATIC: movq dptr, %rax
; LINUX-64-STATIC: movq dptr(%rip), %rax
; LINUX-64-STATIC: leaq 64(%rax,%rdi,4), %rax
; LINUX-64-STATIC: ret
}
@ -1502,7 +1502,7 @@ entry:
%3 = bitcast i32* %2 to i8*
ret i8* %3
; LINUX-64-STATIC: cat08:
; LINUX-64-STATIC: movq lptr, %rax
; LINUX-64-STATIC: movq lptr(%rip), %rax
; LINUX-64-STATIC: leaq 64(%rax,%rdi,4), %rax
; LINUX-64-STATIC: ret
}
@ -1559,7 +1559,7 @@ entry:
%3 = bitcast i32* %2 to i8*
ret i8* %3
; LINUX-64-STATIC: cam02:
; LINUX-64-STATIC: movq ptr, %rax
; LINUX-64-STATIC: movq ptr(%rip), %rax
; LINUX-64-STATIC: leaq 262144(%rax,%rdi,4), %rax
; LINUX-64-STATIC: ret
}
@ -1594,7 +1594,7 @@ entry:
%3 = bitcast i32* %2 to i8*
ret i8* %3
; LINUX-64-STATIC: cam05:
; LINUX-64-STATIC: movq dptr, %rax
; LINUX-64-STATIC: movq dptr(%rip), %rax
; LINUX-64-STATIC: leaq 262144(%rax,%rdi,4), %rax
; LINUX-64-STATIC: ret
}
@ -1629,7 +1629,7 @@ entry:
%3 = bitcast i32* %2 to i8*
ret i8* %3
; LINUX-64-STATIC: cam08:
; LINUX-64-STATIC: movq lptr, %rax
; LINUX-64-STATIC: movq lptr(%rip), %rax
; LINUX-64-STATIC: leaq 262144(%rax,%rdi,4), %rax
; LINUX-64-STATIC: ret
}

10
test/CodeGen/X86/codemodel.ll
View File

@ -8,7 +8,7 @@ target triple = "x86_64-unknown-linux-gnu"
define i32 @foo() nounwind readonly {
entry:
; CHECK-SMALL: foo:
; CHECK-SMALL: movl data, %eax
; CHECK-SMALL: movl data(%rip), %eax
; CHECK-KERNEL: foo:
; CHECK-KERNEL: movl data, %eax
%0 = load i32* getelementptr ([0 x i32]* @data, i64 0, i64 0), align 4 ; <i32> [#uses=1]
@ -18,7 +18,7 @@ entry:
define i32 @foo2() nounwind readonly {
entry:
; CHECK-SMALL: foo2:
; CHECK-SMALL: movl data+40, %eax
; CHECK-SMALL: movl data+40(%rip), %eax
; CHECK-KERNEL: foo2:
; CHECK-KERNEL: movl data+40, %eax
%0 = load i32* getelementptr ([0 x i32]* @data, i32 0, i64 10), align 4 ; <i32> [#uses=1]
@ -28,7 +28,7 @@ entry:
define i32 @foo3() nounwind readonly {
entry:
; CHECK-SMALL: foo3:
; CHECK-SMALL: movl data-40, %eax
; CHECK-SMALL: movl data-40(%rip), %eax
; CHECK-KERNEL: foo3:
; CHECK-KERNEL: movq $-40, %rax
%0 = load i32* getelementptr ([0 x i32]* @data, i32 0, i64 -10), align 4 ; <i32> [#uses=1]
@ -50,7 +50,7 @@ entry:
define i32 @foo1() nounwind readonly {
entry:
; CHECK-SMALL: foo1:
; CHECK-SMALL: movl data+16777212, %eax
; CHECK-SMALL: movl data+16777212(%rip), %eax
; CHECK-KERNEL: foo1:
; CHECK-KERNEL: movl data+16777212, %eax
%0 = load i32* getelementptr ([0 x i32]* @data, i32 0, i64 4194303), align 4 ; <i32> [#uses=1]
@ -59,7 +59,7 @@ entry:
define i32 @foo5() nounwind readonly {
entry:
; CHECK-SMALL: foo5:
; CHECK-SMALL: movl data-16777216, %eax
; CHECK-SMALL: movl data-16777216(%rip), %eax
; CHECK-KERNEL: foo5:
; CHECK-KERNEL: movq $-16777216, %rax
%0 = load i32* getelementptr ([0 x i32]* @data, i32 0, i64 -4194304), align 4 ; <i32> [#uses=1]

5
test/CodeGen/X86/rip-rel-address.ll
View File

@ -1,11 +1,14 @@
; RUN: llvm-as < %s | llc -march=x86-64 -relocation-model=pic -mtriple=x86_64-apple-darwin10 | FileCheck %s -check-prefix=PIC64
; RUN: llvm-as < %s | llc -mtriple=x86_64-unknown-linux-gnu -relocation-model=static | FileCheck %s -check-prefix=STATIC64
; Use %rip-relative addressing even in static mode on x86-64, because
; it has a smaller encoding.
@a = internal global double 3.4
define double @foo() nounwind {
%a = load double* @a
ret double %a
; PIC64: movsd _a(%rip), %xmm0
; STATIC64: movsd a, %xmm0
; STATIC64: movsd a(%rip), %xmm0
}