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Add code to check signatures of LLVM intrinsic declarations in stdlib*.ll files.

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Fix a case where we were using the wrong signature for stmxcsr and ldmxcsr.
This commit is contained in:
Matt Pharr
2011-07-22 12:53:17 +01:00
parent da0fd93315
commit 98a2d69e72
4 changed files with 46 additions and 14 deletions
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9
stdlib-sse.ll
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@@ -124,18 +124,19 @@ define internal float @__sqrt_uniform_float(float) nounwind readonly alwaysinlin
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; fast math mode
declare void @llvm.x86.sse.stmxcsr(i32 *) nounwind
declare void @llvm.x86.sse.ldmxcsr(i32 *) nounwind
declare void @llvm.x86.sse.stmxcsr(i8 *) nounwind
declare void @llvm.x86.sse.ldmxcsr(i8 *) nounwind
define internal void @__fastmath() nounwind alwaysinline {
%ptr = alloca i32
call void @llvm.x86.sse.stmxcsr(i32 * %ptr)
%ptr8 = bitcast i32 * %ptr to i8 *
call void @llvm.x86.sse.stmxcsr(i8 * %ptr8)
%oldval = load i32 *%ptr
; turn on DAZ (64)/FTZ (32768) -> 32832
%update = or i32 %oldval, 32832
store i32 %update, i32 *%ptr
call void @llvm.x86.sse.ldmxcsr(i32 * %ptr)
call void @llvm.x86.sse.ldmxcsr(i8 * %ptr8)
ret void
}