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96b1e70c66
Note: This was originally reverted to track down a buildbot error. Reapply without any modifications. Original commit message: In the large code model for X86 floating-point constants are placed in the constant pool and materialized by loading from it. Since the constant pool could be far away, a PC relative load might not work. Therefore we first materialize the address of the constant pool with a movabsq and then load from there the floating-point value. Fixes <rdar://problem/17674628>. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216012 91177308-0d34-0410-b5e6-96231b3b80d8
24 lines
741 B
LLVM
24 lines
741 B
LLVM
; RUN: llc -mtriple=x86_64-apple-darwin -fast-isel -code-model=small < %s | FileCheck %s
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; RUN: llc -mtriple=x86_64-apple-darwin -fast-isel -code-model=large < %s | FileCheck %s --check-prefix=LARGE
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; Make sure fast isel uses rip-relative addressing for the small code model.
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define float @constpool_float(float %x) {
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; CHECK-LABEL: constpool_float
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; CHECK: LCPI0_0(%rip)
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; LARGE-LABEL: constpool_float
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; LARGE: movabsq $LCPI0_0, %rax
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%1 = fadd float %x, 16.50e+01
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ret float %1
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}
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define double @constpool_double(double %x) nounwind {
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; CHECK-LABEL: constpool_double
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; CHECK: LCPI1_0(%rip)
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; LARGE-LABEL: constpool_double
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; LARGE: movabsq $LCPI1_0, %rax
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%1 = fadd double %x, 8.500000e-01
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ret double %1
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}
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