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Fixes for intrinsics unsupported in earlier LLVM versions.

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Specifically, don't use the half/float conversion routines with
LLVM 3.0, and don't try to use RDRAND with anything before LLVM 3.2.
This commit is contained in:
Matt Pharr
2012-07-13 12:14:10 -07:00
parent 9a1932eaf7
commit 98b2e0e426
5 changed files with 47 additions and 6 deletions
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8
builtins/target-avx11.ll
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@@ -31,7 +31,9 @@
include(`target-avx.ll')
rdrand_definition()
ifelse(LLVM_VERSION, `LLVM_3_0', `rdrand_decls()',
LLVM_VERSION, `LLVM_3_1', `rdrand_decls()',
`rdrand_definition()')
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; int min/max
@@ -73,6 +75,9 @@ gen_gather(double)
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; float/half conversions
ifelse(LLVM_VERSION, `LLVM_3_0', `
;; nothing to define...
', `
declare <8 x float> @llvm.x86.vcvtph2ps.256(<8 x i16>) nounwind readnone
; 0 is round nearest even
declare <8 x i16> @llvm.x86.vcvtps2ph.256(<8 x float>, i32) nounwind readnone
@@ -107,3 +112,4 @@ define i16 @__float_to_half_uniform(float %v) nounwind readnone {
%r = extractelement <8 x i16> %rv, i32 0
ret i16 %r
}
')