[X86] Remove llvm.x86.bit.scan.{forward,reverse}.32

The need for these intrinsics has been obviated by r272564 which
reimplements their functionality using generic IR.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272566 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/include/llvm/IR/IntrinsicsX86.td b/include/llvm/IR/IntrinsicsX86.td
index a86565a38a1bb7b52a5362536d3a4b7a31329b98..ee6e46ec7a2be4f508adec075bcdf9835699e425 100644 (file)
--- a/include/llvm/IR/IntrinsicsX86.td
+++ b/include/llvm/IR/IntrinsicsX86.td
@@ -8098,13 +8098,3 @@ let TargetPrefix = "x86" in {
       : GCCBuiltin<"__builtin_ia32_mwaitx">,
         Intrinsic<[], [ llvm_i32_ty, llvm_i32_ty, llvm_i32_ty ], []>;
 }
-
-//===----------------------------------------------------------------------===//
-// Bit Scan intrinsics
-let TargetPrefix = "x86" in {
-  def int_x86_bit_scan_forward_32 : GCCBuiltin<"__builtin_ia32_bit_scan_forward">,
-      Intrinsic<[llvm_i32_ty], [llvm_i32_ty], [IntrNoMem]>;
-   
-  def int_x86_bit_scan_reverse_32 : GCCBuiltin<"__builtin_ia32_bit_scan_reverse">,
-      Intrinsic<[llvm_i32_ty], [llvm_i32_ty], [IntrNoMem]>;
-}

diff --git a/lib/Target/X86/X86IntrinsicsInfo.h b/lib/Target/X86/X86IntrinsicsInfo.h
index 3f5bd34b5681710d3f64586081722222205235f3..d07a42b7011a026fb945d9104b4b2bce063f9a5a 100644 (file)
--- a/lib/Target/X86/X86IntrinsicsInfo.h
+++ b/lib/Target/X86/X86IntrinsicsInfo.h
@@ -2044,8 +2044,6 @@ static const IntrinsicData  IntrinsicsWithoutChain[] = {
                      X86ISD::SCALAR_FP_TO_UINT_RND, 0),
   X86_INTRINSIC_DATA(avx512_vcvtss2usi64, INTR_TYPE_2OP,
                      X86ISD::SCALAR_FP_TO_UINT_RND, 0),
-  X86_INTRINSIC_DATA(bit_scan_forward_32,  INTR_TYPE_1OP, X86ISD::BSF, 0),
-  X86_INTRINSIC_DATA(bit_scan_reverse_32,  INTR_TYPE_1OP, X86ISD::BSR, 0),
   X86_INTRINSIC_DATA(fma_vfmadd_pd,        INTR_TYPE_3OP, X86ISD::FMADD, 0),
   X86_INTRINSIC_DATA(fma_vfmadd_pd_256,    INTR_TYPE_3OP, X86ISD::FMADD, 0),
   X86_INTRINSIC_DATA(fma_vfmadd_ps,        INTR_TYPE_3OP, X86ISD::FMADD, 0),

diff --git a/test/CodeGen/X86/bitscan.ll b/test/CodeGen/X86/bitscan.ll
deleted file mode 100644 (file)
index 52829a6..0000000
--- a/test/CodeGen/X86/bitscan.ll
+++ /dev/null
@@ -1,23 +0,0 @@
-; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mcpu=corei7 | FileCheck %s --check-prefix=ALL --check-prefix=64-BIT
-; RUN: llc < %s -mtriple=i386-unknown-unknown -mcpu=corei7 | FileCheck %s --check-prefix=ALL --check-prefix=32-BIT
-declare i32 @llvm.x86.bit.scan.forward.32(i32 %val)
-declare i32 @llvm.x86.bit.scan.reverse.32(i32 %val)
-
-define i32 @test_bsf(i32 %val) {
-  %call = call i32 @llvm.x86.bit.scan.forward.32(i32 %val)
-  ret i32 %call
-
-; ALL-LABEL: test_bsf:
-; 64-BIT:    bsfl %edi, %eax
-; 32-BIT:    bsfl 4(%esp), %eax
-}
-
-define i32 @test_bsr(i32 %val) {
-  %call = call i32 @llvm.x86.bit.scan.reverse.32(i32 %val)
-  ret i32 %call
-
-; ALL-LABEL: test_bsr:
-; 64-BIT:    bsrl %edi, %eax
-; 32-BIT:    bsrl 4(%esp), %eax
-}
-