From: Simon Pilgrim <llvm-dev@redking.me.uk>
Date: Thu, 27 Sep 2018 14:57:57 +0000 (+0000)
Subject: [X86][Btver2] BLSI/BLSMSK/BLSR instructions take 2uops not 1 (same as TZCNT)
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=c2a88ea64e154d44f0a8da44bf84b9acac52066b;p=platform%2Fupstream%2Fllvm.git

[X86][Btver2] BLSI/BLSMSK/BLSR instructions take 2uops not 1 (same as TZCNT)

llvm-svn: 343227
---

diff --git a/llvm/lib/Target/X86/X86ScheduleBtVer2.td b/llvm/lib/Target/X86/X86ScheduleBtVer2.td
index 450b18f..83ba18f 100644
--- a/llvm/lib/Target/X86/X86ScheduleBtVer2.td
+++ b/llvm/lib/Target/X86/X86ScheduleBtVer2.td
@@ -214,7 +214,7 @@ defm : JWriteResIntPair<WriteTZCNT,          [JALU01], 2, [2], 2>;
 
 // BMI1 BEXTR/BLS, BMI2 BZHI
 defm : JWriteResIntPair<WriteBEXTR, [JALU01], 1>;
-defm : JWriteResIntPair<WriteBLS,   [JALU01], 2, [2]>;
+defm : JWriteResIntPair<WriteBLS,   [JALU01], 2, [2], 2>;
 defm : X86WriteResPairUnsupported<WriteBZHI>;
 
 ////////////////////////////////////////////////////////////////////////////////
diff --git a/llvm/test/tools/llvm-mca/X86/BtVer2/resources-bmi1.s b/llvm/test/tools/llvm-mca/X86/BtVer2/resources-bmi1.s
index 54db08b..f2ea5ea 100644
--- a/llvm/test/tools/llvm-mca/X86/BtVer2/resources-bmi1.s
+++ b/llvm/test/tools/llvm-mca/X86/BtVer2/resources-bmi1.s
@@ -54,18 +54,18 @@ tzcnt       (%rax), %rcx
 # CHECK-NEXT:  1      4     1.00    *                   bextrl	%eax, (%rbx), %ecx
 # CHECK-NEXT:  1      1     0.50                        bextrq	%rax, %rbx, %rcx
 # CHECK-NEXT:  1      4     1.00    *                   bextrq	%rax, (%rbx), %rcx
-# CHECK-NEXT:  1      2     1.00                        blsil	%eax, %ecx
-# CHECK-NEXT:  1      5     1.00    *                   blsil	(%rax), %ecx
-# CHECK-NEXT:  1      2     1.00                        blsiq	%rax, %rcx
-# CHECK-NEXT:  1      5     1.00    *                   blsiq	(%rax), %rcx
-# CHECK-NEXT:  1      2     1.00                        blsmskl	%eax, %ecx
-# CHECK-NEXT:  1      5     1.00    *                   blsmskl	(%rax), %ecx
-# CHECK-NEXT:  1      2     1.00                        blsmskq	%rax, %rcx
-# CHECK-NEXT:  1      5     1.00    *                   blsmskq	(%rax), %rcx
-# CHECK-NEXT:  1      2     1.00                        blsrl	%eax, %ecx
-# CHECK-NEXT:  1      5     1.00    *                   blsrl	(%rax), %ecx
-# CHECK-NEXT:  1      2     1.00                        blsrq	%rax, %rcx
-# CHECK-NEXT:  1      5     1.00    *                   blsrq	(%rax), %rcx
+# CHECK-NEXT:  2      2     1.00                        blsil	%eax, %ecx
+# CHECK-NEXT:  2      5     1.00    *                   blsil	(%rax), %ecx
+# CHECK-NEXT:  2      2     1.00                        blsiq	%rax, %rcx
+# CHECK-NEXT:  2      5     1.00    *                   blsiq	(%rax), %rcx
+# CHECK-NEXT:  2      2     1.00                        blsmskl	%eax, %ecx
+# CHECK-NEXT:  2      5     1.00    *                   blsmskl	(%rax), %ecx
+# CHECK-NEXT:  2      2     1.00                        blsmskq	%rax, %rcx
+# CHECK-NEXT:  2      5     1.00    *                   blsmskq	(%rax), %rcx
+# CHECK-NEXT:  2      2     1.00                        blsrl	%eax, %ecx
+# CHECK-NEXT:  2      5     1.00    *                   blsrl	(%rax), %ecx
+# CHECK-NEXT:  2      2     1.00                        blsrq	%rax, %rcx
+# CHECK-NEXT:  2      5     1.00    *                   blsrq	(%rax), %rcx
 # CHECK-NEXT:  2      2     1.00                        tzcntl	%eax, %ecx
 # CHECK-NEXT:  2      5     1.00    *                   tzcntl	(%rax), %ecx
 # CHECK-NEXT:  2      2     1.00                        tzcntq	%rax, %rcx