8b56da5e9f
With this patch an undefined mask in a shufflevector will be printed as poison. This change is done to support the new shufflevector semantics for undefined mask elements. Differential Revision: https://reviews.llvm.org/D149210
39 lines
1.9 KiB
LLVM
39 lines
1.9 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
|
|
; RUN: opt < %s -passes=vector-combine -S -mtriple=x86_64-- | FileCheck %s
|
|
|
|
target datalayout = "e-p:64:64-i64:64-f80:128-n8:16:32:64-S128"
|
|
|
|
; This would insert before a phi instruction which is invalid IR.
|
|
|
|
define <4 x double> @PR60649() {
|
|
; CHECK-LABEL: @PR60649(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: br label [[END:%.*]]
|
|
; CHECK: unreachable:
|
|
; CHECK-NEXT: br label [[END]]
|
|
; CHECK: end:
|
|
; CHECK-NEXT: [[T0:%.*]] = phi <4 x double> [ zeroinitializer, [[ENTRY:%.*]] ], [ zeroinitializer, [[UNREACHABLE:%.*]] ]
|
|
; CHECK-NEXT: [[T1:%.*]] = phi <4 x double> [ zeroinitializer, [[ENTRY]] ], [ zeroinitializer, [[UNREACHABLE]] ]
|
|
; CHECK-NEXT: [[TMP0:%.*]] = shufflevector <4 x double> [[T0]], <4 x double> [[T0]], <4 x i32> <i32 2, i32 3, i32 poison, i32 poison>
|
|
; CHECK-NEXT: [[TMP1:%.*]] = shufflevector <4 x double> [[T0]], <4 x double> [[T0]], <4 x i32> <i32 0, i32 1, i32 poison, i32 poison>
|
|
; CHECK-NEXT: [[TMP2:%.*]] = fdiv <4 x double> [[TMP1]], <double 0.000000e+00, double 0.000000e+00, double undef, double undef>
|
|
; CHECK-NEXT: [[TMP3:%.*]] = fmul <4 x double> [[TMP0]], <double 0.000000e+00, double 0.000000e+00, double undef, double undef>
|
|
; CHECK-NEXT: [[T5:%.*]] = shufflevector <4 x double> [[TMP2]], <4 x double> [[TMP3]], <4 x i32> <i32 0, i32 1, i32 4, i32 5>
|
|
; CHECK-NEXT: ret <4 x double> [[T5]]
|
|
;
|
|
entry:
|
|
br label %end
|
|
|
|
unreachable:
|
|
br label %end
|
|
|
|
end:
|
|
%t0 = phi <4 x double> [ zeroinitializer, %entry ], [ zeroinitializer, %unreachable ]
|
|
%t1 = phi <4 x double> [ zeroinitializer, %entry ], [ zeroinitializer, %unreachable ]
|
|
%t2 = shufflevector <4 x double> zeroinitializer, <4 x double> zeroinitializer, <4 x i32> <i32 0, i32 0, i32 1, i32 1>
|
|
%t3 = fdiv <4 x double> %t0, %t2
|
|
%t4 = fmul <4 x double> %t0, %t2
|
|
%t5 = shufflevector <4 x double> %t3, <4 x double> %t4, <4 x i32> <i32 0, i32 1, i32 6, i32 7>
|
|
ret <4 x double> %t5
|
|
}
|