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[InstCombine] Additional test for PR35354, NFC. 

llvm-svn: 319783
This commit is contained in:
Alexey Bataev 2017-12-05 16:15:55 +00:00
parent 4a9b1e1273
commit d4683e6ef1
1 changed files with 23 additions and 0 deletions
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23
llvm/test/Transforms/InstCombine/load-bitcast-select.ll
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@ -85,3 +85,26 @@ define void @bitcasted_store(i1 %cond, float* %loadaddr1, float* %loadaddr2, flo
store i32 %ld, i32* %int_store_addr
ret void
}
define void @bitcasted_minmax_with_select_of_pointers(float* %loadaddr1, float* %loadaddr2, float* %storeaddr) {
; CHECK-LABEL: @bitcasted_minmax_with_select_of_pointers(
; CHECK-NEXT: [[LD1:%.*]] = load float, float* [[LOADADDR1:%.*]], align 4
; CHECK-NEXT: [[LD2:%.*]] = load float, float* [[LOADADDR2:%.*]], align 4
; CHECK-NEXT: [[COND:%.*]] = fcmp ogt float [[LD1]], [[LD2]]
; CHECK-NEXT: [[SEL:%.*]] = select i1 [[COND]], float* [[LOADADDR1]], float* [[LOADADDR2]]
; CHECK-NEXT: [[INT_LOAD_ADDR:%.*]] = bitcast float* [[SEL]] to i32*
; CHECK-NEXT: [[LD:%.*]] = load i32, i32* [[INT_LOAD_ADDR]], align 4
; CHECK-NEXT: [[INT_STORE_ADDR:%.*]] = bitcast float* [[STOREADDR:%.*]] to i32*
; CHECK-NEXT: store i32 [[LD]], i32* [[INT_STORE_ADDR]], align 4
; CHECK-NEXT: ret void
;
%ld1 = load float, float* %loadaddr1, align 4
%ld2 = load float, float* %loadaddr2, align 4
%cond = fcmp ogt float %ld1, %ld2
%sel = select i1 %cond, float* %loadaddr1, float* %loadaddr2
%int_load_addr = bitcast float* %sel to i32*
%ld = load i32, i32* %int_load_addr, align 4
%int_store_addr = bitcast float* %storeaddr to i32*
store i32 %ld, i32* %int_store_addr, align 4
ret void
}