| ; RUN: llc < %s -mtriple=armv6-eabi -mattr=+vfp2 -float-abi=hard | 
 | ; PR4419 | 
 |  | 
 | define float @__ieee754_acosf(float %x) nounwind { | 
 | entry: | 
 | 	br i1 undef, label %bb, label %bb4 | 
 |  | 
 | bb:		; preds = %entry | 
 | 	ret float undef | 
 |  | 
 | bb4:		; preds = %entry | 
 | 	br i1 undef, label %bb5, label %bb6 | 
 |  | 
 | bb5:		; preds = %bb4 | 
 | 	ret float undef | 
 |  | 
 | bb6:		; preds = %bb4 | 
 | 	br i1 undef, label %bb11, label %bb12 | 
 |  | 
 | bb11:		; preds = %bb6 | 
 | 	%0 = tail call float @__ieee754_sqrtf(float undef) nounwind		; <float> [#uses=1] | 
 | 	%1 = fmul float %0, -2.000000e+00		; <float> [#uses=1] | 
 | 	%2 = fadd float %1, 0x400921FB40000000		; <float> [#uses=1] | 
 | 	ret float %2 | 
 |  | 
 | bb12:		; preds = %bb6 | 
 | 	ret float undef | 
 | } | 
 |  | 
 | declare float @__ieee754_sqrtf(float) |