forked from OSchip/llvm-project
85 lines
2.3 KiB
LLVM
85 lines
2.3 KiB
LLVM
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; RUN: opt < %s -instcombine -S | FileCheck %s
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; Check all scalar / vector combinations for a pair of bitcasts.
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define ppc_fp128 @bitcast_bitcast_s_s_s(i128 %a) {
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%bc1 = bitcast i128 %a to fp128
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%bc2 = bitcast fp128 %bc1 to ppc_fp128
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ret ppc_fp128 %bc2
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; CHECK-LABEL: @bitcast_bitcast_s_s_s(
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; CHECK-NEXT: %bc2 = bitcast i128 %a to ppc_fp128
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; CHECK-NEXT: ret ppc_fp128 %bc2
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}
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define <2 x i32> @bitcast_bitcast_s_s_v(i64 %a) {
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%bc1 = bitcast i64 %a to double
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%bc2 = bitcast double %bc1 to <2 x i32>
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ret <2 x i32> %bc2
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; CHECK-LABEL: @bitcast_bitcast_s_s_v(
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; CHECK-NEXT: %bc2 = bitcast i64 %a to <2 x i32>
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; CHECK-NEXT: ret <2 x i32> %bc2
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}
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define double @bitcast_bitcast_s_v_s(i64 %a) {
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%bc1 = bitcast i64 %a to <2 x i32>
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%bc2 = bitcast <2 x i32> %bc1 to double
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ret double %bc2
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; CHECK-LABEL: @bitcast_bitcast_s_v_s(
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; CHECK-NEXT: %bc2 = bitcast i64 %a to double
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; CHECK-NEXT: ret double %bc2
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}
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define <2 x i32> @bitcast_bitcast_s_v_v(i64 %a) {
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%bc1 = bitcast i64 %a to <4 x i16>
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%bc2 = bitcast <4 x i16> %bc1 to <2 x i32>
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ret <2 x i32> %bc2
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; CHECK-LABEL: @bitcast_bitcast_s_v_v(
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; CHECK-NEXT: %bc2 = bitcast i64 %a to <2 x i32>
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; CHECK-NEXT: ret <2 x i32> %bc2
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}
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define i64 @bitcast_bitcast_v_s_s(<2 x i32> %a) {
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%bc1 = bitcast <2 x i32> %a to double
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%bc2 = bitcast double %bc1 to i64
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ret i64 %bc2
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; CHECK-LABEL: @bitcast_bitcast_v_s_s(
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; CHECK-NEXT: %bc2 = bitcast <2 x i32> %a to i64
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; CHECK-NEXT: ret i64 %bc2
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}
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define <4 x i16> @bitcast_bitcast_v_s_v(<2 x i32> %a) {
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%bc1 = bitcast <2 x i32> %a to double
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%bc2 = bitcast double %bc1 to <4 x i16>
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ret <4 x i16> %bc2
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; CHECK-LABEL: @bitcast_bitcast_v_s_v(
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; CHECK-NEXT: %bc2 = bitcast <2 x i32> %a to <4 x i16>
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; CHECK-NEXT: ret <4 x i16> %bc2
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}
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define double @bitcast_bitcast_v_v_s(<2 x float> %a) {
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%bc1 = bitcast <2 x float> %a to <4 x i16>
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%bc2 = bitcast <4 x i16> %bc1 to double
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ret double %bc2
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; CHECK-LABEL: @bitcast_bitcast_v_v_s(
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; CHECK-NEXT: %bc2 = bitcast <2 x float> %a to double
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; CHECK-NEXT: ret double %bc2
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}
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define <2 x i32> @bitcast_bitcast_v_v_v(<2 x float> %a) {
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%bc1 = bitcast <2 x float> %a to <4 x i16>
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%bc2 = bitcast <4 x i16> %bc1 to <2 x i32>
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ret <2 x i32> %bc2
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; CHECK-LABEL: @bitcast_bitcast_v_v_v(
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; CHECK-NEXT: %bc2 = bitcast <2 x float> %a to <2 x i32>
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; CHECK-NEXT: ret <2 x i32> %bc2
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}
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