llvm-project/llvm/test/Transforms/InstCombine/bitcast-vec-canon.ll

42 lines
911 B
LLVM

; RUN: opt < %s -instcombine -S | FileCheck %s
define double @a(<1 x i64> %y) {
%c = bitcast <1 x i64> %y to double
ret double %c
; CHECK-LABEL: @a(
; CHECK-NEXT: bitcast <1 x i64> %y to <1 x double>
; CHECK-NEXT: extractelement <1 x double> {{.*}}, i32 0
; CHECK-NEXT: ret double
}
define i64 @b(<1 x i64> %y) {
%c = bitcast <1 x i64> %y to i64
ret i64 %c
; CHECK-LABEL: @b(
; CHECK-NEXT: extractelement <1 x i64> %y, i32 0
; CHECK-NEXT: ret i64
}
define <1 x i64> @c(double %y) {
%c = bitcast double %y to <1 x i64>
ret <1 x i64> %c
; CHECK-LABEL: @c(
; CHECK-NEXT: bitcast double %y to i64
; CHECK-NEXT: insertelement <1 x i64> undef, i64 {{.*}}, i32 0
; CHECK-NEXT: ret <1 x i64>
}
define <1 x i64> @d(i64 %y) {
%c = bitcast i64 %y to <1 x i64>
ret <1 x i64> %c
; CHECK-LABEL: @d(
; CHECK-NEXT: insertelement <1 x i64> undef, i64 %y, i32 0
; CHECK-NEXT: ret <1 x i64>
}