1 ; RUN: llc -mtriple=x86_64-linux -mcpu=nehalem < %s | FileCheck %s --check-prefix=LIN 2 ; RUN: llc -mtriple=x86_64-win32 -mcpu=nehalem < %s | FileCheck %s --check-prefix=WIN 3 ; RUN: llc -mtriple=i686-win32 -mcpu=nehalem < %s | FileCheck %s --check-prefix=LIN32 4 ; rdar://7398554 5 6 ; When doing vector gather-scatter index calculation with 32-bit indices, 7 ; use an efficient mov/shift sequence rather than shuffling each individual 8 ; element out of the index vector. 9 10 ; CHECK-LABEL: foo: 11 ; LIN: movdqa (%rsi), %xmm0 12 ; LIN: pand (%rdx), %xmm0 13 ; LIN: pextrq $1, %xmm0, %r[[REG4:.+]] 14 ; LIN: movd %xmm0, %r[[REG2:.+]] 15 ; LIN: movslq %e[[REG2]], %r[[REG1:.+]] 16 ; LIN: sarq $32, %r[[REG2]] 17 ; LIN: movslq %e[[REG4]], %r[[REG3:.+]] 18 ; LIN: sarq $32, %r[[REG4]] 19 ; LIN: movsd (%rdi,%r[[REG1]],8), %xmm0 20 ; LIN: movhpd (%rdi,%r[[REG2]],8), %xmm0 21 ; LIN: movsd (%rdi,%r[[REG3]],8), %xmm1 22 ; LIN: movhpd (%rdi,%r[[REG4]],8), %xmm1 23 24 ; WIN: movdqa (%rdx), %xmm0 25 ; WIN: pand (%r8), %xmm0 26 ; WIN: pextrq $1, %xmm0, %r[[REG4:.+]] 27 ; WIN: movd %xmm0, %r[[REG2:.+]] 28 ; WIN: movslq %e[[REG2]], %r[[REG1:.+]] 29 ; WIN: sarq $32, %r[[REG2]] 30 ; WIN: movslq %e[[REG4]], %r[[REG3:.+]] 31 ; WIN: sarq $32, %r[[REG4]] 32 ; WIN: movsd (%rcx,%r[[REG1]],8), %xmm0 33 ; WIN: movhpd (%rcx,%r[[REG2]],8), %xmm0 34 ; WIN: movsd (%rcx,%r[[REG3]],8), %xmm1 35 ; WIN: movhpd (%rcx,%r[[REG4]],8), %xmm1 36 37 define <4 x double> @foo(double* %p, <4 x i32>* %i, <4 x i32>* %h) nounwind { 38 %a = load <4 x i32>, <4 x i32>* %i 39 %b = load <4 x i32>, <4 x i32>* %h 40 %j = and <4 x i32> %a, %b 41 %d0 = extractelement <4 x i32> %j, i32 0 42 %d1 = extractelement <4 x i32> %j, i32 1 43 %d2 = extractelement <4 x i32> %j, i32 2 44 %d3 = extractelement <4 x i32> %j, i32 3 45 %q0 = getelementptr double, double* %p, i32 %d0 46 %q1 = getelementptr double, double* %p, i32 %d1 47 %q2 = getelementptr double, double* %p, i32 %d2 48 %q3 = getelementptr double, double* %p, i32 %d3 49 %r0 = load double, double* %q0 50 %r1 = load double, double* %q1 51 %r2 = load double, double* %q2 52 %r3 = load double, double* %q3 53 %v0 = insertelement <4 x double> undef, double %r0, i32 0 54 %v1 = insertelement <4 x double> %v0, double %r1, i32 1 55 %v2 = insertelement <4 x double> %v1, double %r2, i32 2 56 %v3 = insertelement <4 x double> %v2, double %r3, i32 3 57 ret <4 x double> %v3 58 } 59 60 ; Check that the sequence previously used above, which bounces the vector off the 61 ; cache works for x86-32. Note that in this case it will not be used for index 62 ; calculation, since indexes are 32-bit, not 64. 63 ; CHECK-LABEL: old: 64 ; LIN32: movaps %xmm0, (%esp) 65 ; LIN32-DAG: {{(mov|and)}}l (%esp), 66 ; LIN32-DAG: {{(mov|and)}}l 4(%esp), 67 ; LIN32-DAG: {{(mov|and)}}l 8(%esp), 68 ; LIN32-DAG: {{(mov|and)}}l 12(%esp), 69 define <4 x i64> @old(double* %p, <4 x i32>* %i, <4 x i32>* %h, i64 %f) nounwind { 70 %a = load <4 x i32>, <4 x i32>* %i 71 %b = load <4 x i32>, <4 x i32>* %h 72 %j = and <4 x i32> %a, %b 73 %d0 = extractelement <4 x i32> %j, i32 0 74 %d1 = extractelement <4 x i32> %j, i32 1 75 %d2 = extractelement <4 x i32> %j, i32 2 76 %d3 = extractelement <4 x i32> %j, i32 3 77 %q0 = zext i32 %d0 to i64 78 %q1 = zext i32 %d1 to i64 79 %q2 = zext i32 %d2 to i64 80 %q3 = zext i32 %d3 to i64 81 %r0 = and i64 %q0, %f 82 %r1 = and i64 %q1, %f 83 %r2 = and i64 %q2, %f 84 %r3 = and i64 %q3, %f 85 %v0 = insertelement <4 x i64> undef, i64 %r0, i32 0 86 %v1 = insertelement <4 x i64> %v0, i64 %r1, i32 1 87 %v2 = insertelement <4 x i64> %v1, i64 %r2, i32 2 88 %v3 = insertelement <4 x i64> %v2, i64 %r3, i32 3 89 ret <4 x i64> %v3 90 } 91
