27 lines
1.1 KiB
LLVM
27 lines
1.1 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
|
|
; RUN: llc < %s -mtriple=x86_64-- -mattr=avx512bw | FileCheck %s
|
|
|
|
; This would infinite loop by trying to truncate to i16 and then promote back to i32.
|
|
|
|
define i16 @PR40793(<8 x i16> %t1) {
|
|
; CHECK-LABEL: PR40793:
|
|
; CHECK: # %bb.0:
|
|
; CHECK-NEXT: vpextrw $5, %xmm0, %ecx
|
|
; CHECK-NEXT: andb $15, %cl
|
|
; CHECK-NEXT: movl $32733, %eax # imm = 0x7FDD
|
|
; CHECK-NEXT: # kill: def $cl killed $cl killed $ecx
|
|
; CHECK-NEXT: shrl %cl, %eax
|
|
; CHECK-NEXT: # kill: def $ax killed $ax killed $eax
|
|
; CHECK-NEXT: retq
|
|
%t2 = and <8 x i16> %t1, <i16 15, i16 15, i16 15, i16 15, i16 15, i16 15, i16 15, i16 15>
|
|
%t3 = lshr <8 x i16> <i16 25156, i16 -14844, i16 -26779, i16 -16956, i16 -13978, i16 32733, i16 -24894, i16 18530>, %t2
|
|
%t4 = bitcast <8 x i16> %t3 to <2 x double>
|
|
%t5 = call <2 x double> @llvm.fabs.v2f64(<2 x double> %t4)
|
|
%t6 = bitcast <2 x double> %t5 to <8 x i16>
|
|
%t7 = extractelement <8 x i16> %t6, i64 5
|
|
ret i16 %t7
|
|
}
|
|
|
|
declare <2 x double> @llvm.fabs.v2f64(<2 x double>)
|
|
|