[X86][RDSEED] Add rdseed scheduling tests

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@320040 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGen/X86/rdseed-schedule.ll b/test/CodeGen/X86/rdseed-schedule.ll
new file mode 100644 (file)
index 0000000..8e889eb
--- /dev/null
+++ b/test/CodeGen/X86/rdseed-schedule.ll
@@ -0,0 +1,116 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -print-schedule -mcpu=x86-64 -mattr=+rdseed | FileCheck %s --check-prefix=CHECK --check-prefix=GENERIC
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -print-schedule -mcpu=goldmont | FileCheck %s --check-prefix=CHECK --check-prefix=GOLDMONT
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -print-schedule -mcpu=broadwell | FileCheck %s --check-prefix=CHECK --check-prefix=BROADWELL
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -print-schedule -mcpu=skylake | FileCheck %s --check-prefix=CHECK --check-prefix=SKYLAKE
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -print-schedule -mcpu=skx | FileCheck %s --check-prefix=CHECK --check-prefix=SKX
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -print-schedule -mcpu=znver1 | FileCheck %s --check-prefix=CHECK --check-prefix=ZNVER1
+
+declare {i16, i32} @llvm.x86.rdseed.16()
+declare {i32, i32} @llvm.x86.rdseed.32()
+declare {i64, i32} @llvm.x86.rdseed.64()
+
+define i16 @test_rdseed_16(i16* %random_val) {
+; GENERIC-LABEL: test_rdseed_16:
+; GENERIC:       # %bb.0:
+; GENERIC-NEXT:    rdseedw %ax
+; GENERIC-NEXT:    retq # sched: [1:1.00]
+;
+; GOLDMONT-LABEL: test_rdseed_16:
+; GOLDMONT:       # %bb.0:
+; GOLDMONT-NEXT:    rdseedw %ax
+; GOLDMONT-NEXT:    retq # sched: [4:1.00]
+;
+; BROADWELL-LABEL: test_rdseed_16:
+; BROADWELL:       # %bb.0:
+; BROADWELL-NEXT:    rdseedw %ax
+; BROADWELL-NEXT:    retq # sched: [7:1.00]
+;
+; SKYLAKE-LABEL: test_rdseed_16:
+; SKYLAKE:       # %bb.0:
+; SKYLAKE-NEXT:    rdseedw %ax
+; SKYLAKE-NEXT:    retq # sched: [7:1.00]
+;
+; SKX-LABEL: test_rdseed_16:
+; SKX:       # %bb.0:
+; SKX-NEXT:    rdseedw %ax
+; SKX-NEXT:    retq # sched: [7:1.00]
+;
+; ZNVER1-LABEL: test_rdseed_16:
+; ZNVER1:       # %bb.0:
+; ZNVER1-NEXT:    rdseedw %ax
+; ZNVER1-NEXT:    retq # sched: [1:0.50]
+  %call = call {i16, i32} @llvm.x86.rdseed.16()
+  %randval = extractvalue {i16, i32} %call, 0
+  ret i16 %randval
+}
+
+define i32 @test_rdseed_32(i16* %random_val) {
+; GENERIC-LABEL: test_rdseed_32:
+; GENERIC:       # %bb.0:
+; GENERIC-NEXT:    rdseedl %eax
+; GENERIC-NEXT:    retq # sched: [1:1.00]
+;
+; GOLDMONT-LABEL: test_rdseed_32:
+; GOLDMONT:       # %bb.0:
+; GOLDMONT-NEXT:    rdseedl %eax
+; GOLDMONT-NEXT:    retq # sched: [4:1.00]
+;
+; BROADWELL-LABEL: test_rdseed_32:
+; BROADWELL:       # %bb.0:
+; BROADWELL-NEXT:    rdseedl %eax
+; BROADWELL-NEXT:    retq # sched: [7:1.00]
+;
+; SKYLAKE-LABEL: test_rdseed_32:
+; SKYLAKE:       # %bb.0:
+; SKYLAKE-NEXT:    rdseedl %eax
+; SKYLAKE-NEXT:    retq # sched: [7:1.00]
+;
+; SKX-LABEL: test_rdseed_32:
+; SKX:       # %bb.0:
+; SKX-NEXT:    rdseedl %eax
+; SKX-NEXT:    retq # sched: [7:1.00]
+;
+; ZNVER1-LABEL: test_rdseed_32:
+; ZNVER1:       # %bb.0:
+; ZNVER1-NEXT:    rdseedl %eax
+; ZNVER1-NEXT:    retq # sched: [1:0.50]
+  %call = call {i32, i32} @llvm.x86.rdseed.32()
+  %randval = extractvalue {i32, i32} %call, 0
+  ret i32 %randval
+}
+
+define i64 @test_rdseed_64(i64* %random_val) {
+; GENERIC-LABEL: test_rdseed_64:
+; GENERIC:       # %bb.0:
+; GENERIC-NEXT:    rdseedq %rax
+; GENERIC-NEXT:    retq # sched: [1:1.00]
+;
+; GOLDMONT-LABEL: test_rdseed_64:
+; GOLDMONT:       # %bb.0:
+; GOLDMONT-NEXT:    rdseedq %rax
+; GOLDMONT-NEXT:    retq # sched: [4:1.00]
+;
+; BROADWELL-LABEL: test_rdseed_64:
+; BROADWELL:       # %bb.0:
+; BROADWELL-NEXT:    rdseedq %rax
+; BROADWELL-NEXT:    retq # sched: [7:1.00]
+;
+; SKYLAKE-LABEL: test_rdseed_64:
+; SKYLAKE:       # %bb.0:
+; SKYLAKE-NEXT:    rdseedq %rax
+; SKYLAKE-NEXT:    retq # sched: [7:1.00]
+;
+; SKX-LABEL: test_rdseed_64:
+; SKX:       # %bb.0:
+; SKX-NEXT:    rdseedq %rax
+; SKX-NEXT:    retq # sched: [7:1.00]
+;
+; ZNVER1-LABEL: test_rdseed_64:
+; ZNVER1:       # %bb.0:
+; ZNVER1-NEXT:    rdseedq %rax
+; ZNVER1-NEXT:    retq # sched: [1:0.50]
+  %call = call {i64, i32} @llvm.x86.rdseed.64()
+  %randval = extractvalue {i64, i32} %call, 0
+  ret i64 %randval
+}