[llvm] r347414 - [InstCombine] Add tests for funnel shift with zero operand; NFC

[Nikita Popov via llvm-commits]

Author: nikic
Date: Wed Nov 21 12:34:11 2018
New Revision: 347414

URL: http://llvm.org/viewvc/llvm-project?rev=347414&view=rev
Log:
[InstCombine] Add tests for funnel shift with zero operand; NFC

These are additional baseline tests for D54778.

Modified:
    llvm/trunk/test/Transforms/InstCombine/fsh.ll

Modified: llvm/trunk/test/Transforms/InstCombine/fsh.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Transforms/InstCombine/fsh.ll?rev=347414&r1=347413&r2=347414&view=diff
==============================================================================
--- llvm/trunk/test/Transforms/InstCombine/fsh.ll (original)
+++ llvm/trunk/test/Transforms/InstCombine/fsh.ll Wed Nov 21 12:34:11 2018
@@ -152,6 +152,15 @@ define i32 @fshl_op0_undef(i32 %x) {
   ret i32 %r
 }
 
+define i32 @fshl_op0_zero(i32 %x) {
+; CHECK-LABEL: @fshl_op0_zero(
+; CHECK-NEXT:    [[R:%.*]] = call i32 @llvm.fshl.i32(i32 0, i32 [[X:%.*]], i32 7)
+; CHECK-NEXT:    ret i32 [[R]]
+;
+  %r = call i32 @llvm.fshl.i32(i32 0, i32 %x, i32 7)
+  ret i32 %r
+}
+
 define i33 @fshr_op0_undef(i33 %x) {
 ; CHECK-LABEL: @fshr_op0_undef(
 ; CHECK-NEXT:    [[R:%.*]] = call i33 @llvm.fshr.i33(i33 undef, i33 [[X:%.*]], i33 7)
@@ -161,6 +170,15 @@ define i33 @fshr_op0_undef(i33 %x) {
   ret i33 %r
 }
 
+define i33 @fshr_op0_zero(i33 %x) {
+; CHECK-LABEL: @fshr_op0_zero(
+; CHECK-NEXT:    [[R:%.*]] = call i33 @llvm.fshr.i33(i33 0, i33 [[X:%.*]], i33 7)
+; CHECK-NEXT:    ret i33 [[R]]
+;
+  %r = call i33 @llvm.fshr.i33(i33 0, i33 %x, i33 7)
+  ret i33 %r
+}
+
 define i32 @fshl_op1_undef(i32 %x) {
 ; CHECK-LABEL: @fshl_op1_undef(
 ; CHECK-NEXT:    [[R:%.*]] = call i32 @llvm.fshl.i32(i32 [[X:%.*]], i32 undef, i32 7)
@@ -170,6 +188,15 @@ define i32 @fshl_op1_undef(i32 %x) {
   ret i32 %r
 }
 
+define i32 @fshl_op1_zero(i32 %x) {
+; CHECK-LABEL: @fshl_op1_zero(
+; CHECK-NEXT:    [[R:%.*]] = call i32 @llvm.fshl.i32(i32 [[X:%.*]], i32 0, i32 7)
+; CHECK-NEXT:    ret i32 [[R]]
+;
+  %r = call i32 @llvm.fshl.i32(i32 %x, i32 0, i32 7)
+  ret i32 %r
+}
+
 define i33 @fshr_op1_undef(i33 %x) {
 ; CHECK-LABEL: @fshr_op1_undef(
 ; CHECK-NEXT:    [[R:%.*]] = call i33 @llvm.fshr.i33(i33 [[X:%.*]], i33 undef, i33 7)
@@ -179,6 +206,15 @@ define i33 @fshr_op1_undef(i33 %x) {
   ret i33 %r
 }
 
+define i33 @fshr_op1_zero(i33 %x) {
+; CHECK-LABEL: @fshr_op1_zero(
+; CHECK-NEXT:    [[R:%.*]] = call i33 @llvm.fshr.i33(i33 [[X:%.*]], i33 0, i33 7)
+; CHECK-NEXT:    ret i33 [[R]]
+;
+  %r = call i33 @llvm.fshr.i33(i33 %x, i33 0, i33 7)
+  ret i33 %r
+}
+
 ; Only demand bits from one of the operands.
 
 define i32 @fshl_only_op0_demanded(i32 %x, i32 %y) {