[X86][FastISel] Support uitofp with avx512.

llvm-svn: 337055

1 files changed, 69 insertions, 0 deletions

diff --git a/llvm/test/CodeGen/X86/fast-isel-uint-float-conversion-x86-64.ll b/llvm/test/CodeGen/X86/fast-isel-uint-float-conversion-x86-64.ll
new file mode 100644
index 00000000000..60d2903ad09
--- /dev/null
+++ b/llvm/test/CodeGen/X86/fast-isel-uint-float-conversion-x86-64.ll
@@ -0,0 +1,69 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc -verify-machineinstrs -mtriple=x86_64-unknown-unknown -mcpu=generic -mattr=+avx512f -fast-isel --fast-isel-abort=1 < %s | FileCheck %s --check-prefix=ALL --check-prefix=AVX
+
+
+define double @long_to_double_rr(i64 %a) {
+; ALL-LABEL: long_to_double_rr:
+; ALL:       # %bb.0: # %entry
+; ALL-NEXT:    vcvtusi2sdq %rdi, %xmm0, %xmm0
+; ALL-NEXT:    retq
+entry:
+  %0 = uitofp i64 %a to double
+  ret double %0
+}
+
+define double @long_to_double_rm(i64* %a) {
+; ALL-LABEL: long_to_double_rm:
+; ALL:       # %bb.0: # %entry
+; ALL-NEXT:    movq (%rdi), %rax
+; ALL-NEXT:    vcvtusi2sdq %rax, %xmm0, %xmm0
+; ALL-NEXT:    retq
+entry:
+  %0 = load i64, i64* %a
+  %1 = uitofp i64 %0 to double
+  ret double %1
+}
+
+define double @long_to_double_rm_optsize(i64* %a) optsize {
+; ALL-LABEL: long_to_double_rm_optsize:
+; ALL:       # %bb.0: # %entry
+; ALL-NEXT:    vcvtusi2sdq (%rdi), %xmm0, %xmm0
+; ALL-NEXT:    retq
+entry:
+  %0 = load i64, i64* %a
+  %1 = uitofp i64 %0 to double
+  ret double %1
+}
+
+define float @long_to_float_rr(i64 %a) {
+; ALL-LABEL: long_to_float_rr:
+; ALL:       # %bb.0: # %entry
+; ALL-NEXT:    vcvtusi2ssq %rdi, %xmm0, %xmm0
+; ALL-NEXT:    retq
+entry:
+  %0 = uitofp i64 %a to float
+  ret float %0
+}
+
+define float @long_to_float_rm(i64* %a) {
+; ALL-LABEL: long_to_float_rm:
+; ALL:       # %bb.0: # %entry
+; ALL-NEXT:    movq (%rdi), %rax
+; ALL-NEXT:    vcvtusi2ssq %rax, %xmm0, %xmm0
+; ALL-NEXT:    retq
+entry:
+  %0 = load i64, i64* %a
+  %1 = uitofp i64 %0 to float
+  ret float %1
+}
+
+define float @long_to_float_rm_optsize(i64* %a) optsize {
+; ALL-LABEL: long_to_float_rm_optsize:
+; ALL:       # %bb.0: # %entry
+; ALL-NEXT:    vcvtusi2ssq (%rdi), %xmm0, %xmm0
+; ALL-NEXT:    retq
+entry:
+  %0 = load i64, i64* %a
+  %1 = uitofp i64 %0 to float
+  ret float %1
+}