; NOTE: Assertions have been autogenerated by utils/update_test_checks.py ; RUN: opt < %s -passes=instcombine -S | FileCheck %s define <2 x float> @vtrn1(<2 x i32> %v) ; CHECK-LABEL: @vtrn1( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[TMP0:%.*]] = bitcast <2 x i32> [[V:%.*]] to <2 x float> ; CHECK-NEXT: [[R:%.*]] = shufflevector <2 x float> [[TMP0]], <2 x float> poison, <2 x i32> zeroinitializer ; CHECK-NEXT: ret <2 x float> [[R]] ; { entry: %vb1 = bitcast <2 x i32> %v to <2 x float> %vb2 = bitcast <2 x i32> %v to <2 x float> %r = shufflevector <2 x float> %vb1, <2 x float> %vb2, <2 x i32> <i32 0, i32 2> ret <2 x float> %r } define <2 x float> @vtrn2(<2 x i32> %x, <2 x i32> %y) { ; CHECK-LABEL: @vtrn2( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[R_UNCASTED:%.*]] = shufflevector <2 x i32> [[X:%.*]], <2 x i32> [[Y:%.*]], <2 x i32> <i32 1, i32 3> ; CHECK-NEXT: [[R:%.*]] = bitcast <2 x i32> [[R_UNCASTED]] to <2 x float> ; CHECK-NEXT: ret <2 x float> [[R]] ; entry: %xb = bitcast <2 x i32> %x to <2 x float> %yb = bitcast <2 x i32> %y to <2 x float> %r = shufflevector <2 x float> %xb, <2 x float> %yb, <2 x i32> <i32 1, i32 3> ret <2 x float> %r } define <4 x float> @bc_shuf_lenchange(<2 x i32> %x, <2 x i32> %y) { ; CHECK-LABEL: @bc_shuf_lenchange( ; CHECK-NEXT: [[R_UNCASTED:%.*]] = shufflevector <2 x i32> [[X:%.*]], <2 x i32> [[Y:%.*]], <4 x i32> <i32 3, i32 2, i32 1, i32 0> ; CHECK-NEXT: [[R:%.*]] = bitcast <4 x i32> [[R_UNCASTED]] to <4 x float> ; CHECK-NEXT: ret <4 x float> [[R]] ; %xb = bitcast <2 x i32> %x to <2 x float> %yb = bitcast <2 x i32> %y to <2 x float> %r = shufflevector <2 x float> %xb, <2 x float> %yb, <4 x i32> <i32 3, i32 2, i32 1, i32 0> ret <4 x float> %r } define <4 x float> @bc_shuf_nonvec(i64 %x, i64 %y) { ; CHECK-LABEL: @bc_shuf_nonvec( ; CHECK-NEXT: [[XB:%.*]] = bitcast i64 [[X:%.*]] to <2 x float> ; CHECK-NEXT: [[YB:%.*]] = bitcast i64 [[Y:%.*]] to <2 x float> ; CHECK-NEXT: [[R:%.*]] = shufflevector <2 x float> [[XB]], <2 x float> [[YB]], <4 x i32> <i32 3, i32 2, i32 1, i32 0> ; CHECK-NEXT: ret <4 x float> [[R]] ; %xb = bitcast i64 %x to <2 x float> %yb = bitcast i64 %y to <2 x float> %r = shufflevector <2 x float> %xb, <2 x float> %yb, <4 x i32> <i32 3, i32 2, i32 1, i32 0> ret <4 x float> %r } define <4 x double> @bc_shuf_size(<4 x i32> %x, <4 x i32> %y) { ; CHECK-LABEL: @bc_shuf_size( ; CHECK-NEXT: [[XB:%.*]] = bitcast <4 x i32> [[X:%.*]] to <2 x double> ; CHECK-NEXT: [[YB:%.*]] = bitcast <4 x i32> [[Y:%.*]] to <2 x double> ; CHECK-NEXT: [[R:%.*]] = shufflevector <2 x double> [[XB]], <2 x double> [[YB]], <4 x i32> <i32 1, i32 3, i32 0, i32 2> ; CHECK-NEXT: ret <4 x double> [[R]] ; %xb = bitcast <4 x i32> %x to <2 x double> %yb = bitcast <4 x i32> %y to <2 x double> %r = shufflevector <2 x double> %xb, <2 x double> %yb, <4 x i32> <i32 1, i32 3, i32 0, i32 2> ret <4 x double> %r } define <2 x double> @bc_shuf_mismatch(<4 x i32> %x, <2 x i64> %y) { ; CHECK-LABEL: @bc_shuf_mismatch( ; CHECK-NEXT: [[XB:%.*]] = bitcast <4 x i32> [[X:%.*]] to <2 x double> ; CHECK-NEXT: [[YB:%.*]] = bitcast <2 x i64> [[Y:%.*]] to <2 x double> ; CHECK-NEXT: [[R:%.*]] = shufflevector <2 x double> [[XB]], <2 x double> [[YB]], <2 x i32> <i32 1, i32 3> ; CHECK-NEXT: ret <2 x double> [[R]] ; %xb = bitcast <4 x i32> %x to <2 x double> %yb = bitcast <2 x i64> %y to <2 x double> %r = shufflevector <2 x double> %xb, <2 x double> %yb, <2 x i32> <i32 1, i32 3> ret <2 x double> %r } define <8 x half> @bc_shuf_i8_float(<8 x i8> %x, <8 x i8> %y) { ; CHECK-LABEL: @bc_shuf_i8_float( ; CHECK-NEXT: [[XB:%.*]] = bitcast <8 x i8> [[X:%.*]] to <4 x half> ; CHECK-NEXT: [[YB:%.*]] = bitcast <8 x i8> [[Y:%.*]] to <4 x half> ; CHECK-NEXT: [[R:%.*]] = shufflevector <4 x half> [[XB]], <4 x half> [[YB]], <8 x i32> <i32 3, i32 2, i32 1, i32 0, i32 7, i32 6, i32 5, i32 4> ; CHECK-NEXT: ret <8 x half> [[R]] ; %xb = bitcast <8 x i8> %x to <4 x half> %yb = bitcast <8 x i8> %y to <4 x half> %r = shufflevector <4 x half> %xb, <4 x half> %yb, <8 x i32> <i32 3, i32 2, i32 1, i32 0, i32 7, i32 6, i32 5, i32 4> ret <8 x half> %r } define <4 x i16> @bc_shuf_elemtype_mismatch(<2 x half> %x, <2 x bfloat> %y) { ; CHECK-LABEL: @bc_shuf_elemtype_mismatch( ; CHECK-NEXT: [[XB:%.*]] = bitcast <2 x half> [[X:%.*]] to <2 x i16> ; CHECK-NEXT: [[YB:%.*]] = bitcast <2 x bfloat> [[Y:%.*]] to <2 x i16> ; CHECK-NEXT: [[R:%.*]] = shufflevector <2 x i16> [[XB]], <2 x i16> [[YB]], <4 x i32> <i32 3, i32 2, i32 1, i32 0> ; CHECK-NEXT: ret <4 x i16> [[R]] ; %xb = bitcast <2 x half> %x to <2 x i16> %yb = bitcast <2 x bfloat> %y to <2 x i16> %r = shufflevector <2 x i16> %xb, <2 x i16> %yb, <4 x i32> <i32 3, i32 2, i32 1, i32 0> ret <4 x i16> %r } define <2 x float> @bc_shuf_reuse(<4 x i32> %x){ ; CHECK-LABEL: @bc_shuf_reuse( ; CHECK-NEXT: [[XB:%.*]] = bitcast <4 x i32> [[X:%.*]] to <4 x float> ; CHECK-NEXT: [[R:%.*]] = shufflevector <4 x float> [[XB]], <4 x float> poison, <2 x i32> zeroinitializer ; CHECK-NEXT: ret <2 x float> [[R]] ; %xb = bitcast <4 x i32> %x to <4 x float> %r = shufflevector <4 x float> %xb, <4 x float> %xb, <2 x i32> <i32 0, i32 4> ret <2 x float> %r } define <4 x float> @bc_shuf_y_hasoneuse(<4 x i32> %x, <4 x i32> %y){ ; CHECK-LABEL: @bc_shuf_y_hasoneuse( ; CHECK-NEXT: [[XB:%.*]] = bitcast <4 x i32> [[X:%.*]] to <4 x float> ; CHECK-NEXT: [[SHUF_UNCASTED:%.*]] = shufflevector <4 x i32> [[X]], <4 x i32> [[Y:%.*]], <4 x i32> <i32 0, i32 1, i32 4, i32 5> ; CHECK-NEXT: [[SHUF:%.*]] = bitcast <4 x i32> [[SHUF_UNCASTED]] to <4 x float> ; CHECK-NEXT: [[R:%.*]] = fadd <4 x float> [[XB]], [[SHUF]] ; CHECK-NEXT: ret <4 x float> [[R]] ; %xb = bitcast <4 x i32> %x to <4 x float> %yb = bitcast <4 x i32> %y to <4 x float> %shuf = shufflevector <4 x float> %xb, <4 x float> %yb, <4 x i32> <i32 0, i32 1, i32 4, i32 5> %r = fadd <4 x float> %xb, %shuf ret <4 x float> %r } define <4 x float> @bc_shuf_neither_hasoneuse(<4 x i32> %x, <4 x i32> %y){ ; CHECK-LABEL: @bc_shuf_neither_hasoneuse( ; CHECK-NEXT: [[XB:%.*]] = bitcast <4 x i32> [[X:%.*]] to <4 x float> ; CHECK-NEXT: [[YB:%.*]] = bitcast <4 x i32> [[Y:%.*]] to <4 x float> ; CHECK-NEXT: [[SHUF:%.*]] = shufflevector <4 x float> [[XB]], <4 x float> poison, <4 x i32> <i32 0, i32 1, i32 0, i32 1> ; CHECK-NEXT: [[SUM:%.*]] = fadd <4 x float> [[XB]], [[YB]] ; CHECK-NEXT: [[R:%.*]] = fadd <4 x float> [[SUM]], [[SHUF]] ; CHECK-NEXT: ret <4 x float> [[R]] ; %xb = bitcast <4 x i32> %x to <4 x float> %yb = bitcast <4 x i32> %y to <4 x float> %shuf = shufflevector <4 x float> %xb, <4 x float> %xb, <4 x i32> <i32 0, i32 1, i32 4, i32 5> %sum = fadd <4 x float> %xb, %yb %r = fadd <4 x float> %sum, %shuf ret <4 x float> %r }