fpscr-intrinsics.ll
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; RUN: llc < %s -O0 -mtriple=armv7-eabi -mcpu=cortex-a8 -mattr=+neon,+fp-armv8 | FileCheck %s
; RUN: llc < %s -O3 -mtriple=armv7-eabi -mcpu=cortex-a8 -mattr=+neon,+fp-armv8 | FileCheck %s
@a = common global double 0.000000e+00, align 8
; Function Attrs: noinline nounwind uwtable
define void @strtod() {
entry:
; CHECK: vmrs r{{[0-9]+}}, fpscr
%0 = call i32 @llvm.flt.rounds()
%tobool = icmp ne i32 %0, 0
br i1 %tobool, label %if.then, label %if.end
if.then: ; preds = %entry
store double 5.000000e-01, double* @a, align 8
br label %if.end
if.end: ; preds = %if.then, %entry
ret void
}
; Function Attrs: nounwind
define void @fn1(i32* nocapture %p) local_unnamed_addr {
entry:
; CHECK: vmrs r{{[0-9]+}}, fpscr
%0 = tail call i32 @llvm.arm.get.fpscr()
store i32 %0, i32* %p, align 4
; CHECK: vmsr fpscr, r{{[0-9]+}}
tail call void @llvm.arm.set.fpscr(i32 1)
; CHECK: vmrs r{{[0-9]+}}, fpscr
%1 = tail call i32 @llvm.arm.get.fpscr()
%arrayidx1 = getelementptr inbounds i32, i32* %p, i32 1
store i32 %1, i32* %arrayidx1, align 4
ret void
}
; Function Attrs: nounwind readonly
declare i32 @llvm.arm.get.fpscr()
; Function Attrs: nounwind writeonly
declare void @llvm.arm.set.fpscr(i32)
; Function Attrs: nounwind
declare i32 @llvm.flt.rounds()