forked from OSchip/llvm-project
105 lines
4.7 KiB
LLVM
105 lines
4.7 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
|
|
; RUN: opt < %s -instcombine -S -data-layout="e-m:e-i64:64-f80:128-n8:16:32:64-S128" | FileCheck %s
|
|
|
|
@a = global [1000 x float] zeroinitializer, align 16
|
|
@b = global [1000 x float] zeroinitializer, align 16
|
|
|
|
define void @_Z3foov() {
|
|
; CHECK-LABEL: @_Z3foov(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: br label [[FOR_COND:%.*]]
|
|
; CHECK: for.cond:
|
|
; CHECK-NEXT: [[I_0:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[INC:%.*]], [[FOR_BODY:%.*]] ]
|
|
; CHECK-NEXT: [[CMP:%.*]] = icmp ult i32 [[I_0]], 1000
|
|
; CHECK-NEXT: br i1 [[CMP]], label [[FOR_BODY]], label [[FOR_COND_CLEANUP:%.*]]
|
|
; CHECK: for.cond.cleanup:
|
|
; CHECK-NEXT: ret void
|
|
; CHECK: for.body:
|
|
; CHECK-NEXT: [[TMP0:%.*]] = zext i32 [[I_0]] to i64
|
|
; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds [1000 x float], [1000 x float]* @a, i64 0, i64 [[TMP0]]
|
|
; CHECK-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds [1000 x float], [1000 x float]* @b, i64 0, i64 [[TMP0]]
|
|
; CHECK-NEXT: [[TMP1:%.*]] = load float, float* [[ARRAYIDX]], align 4
|
|
; CHECK-NEXT: [[TMP2:%.*]] = load float, float* [[ARRAYIDX2]], align 4
|
|
; CHECK-NEXT: [[CMP_I:%.*]] = fcmp fast olt float [[TMP1]], [[TMP2]]
|
|
; CHECK-NEXT: [[TMP3:%.*]] = select i1 [[CMP_I]], float [[TMP2]], float [[TMP1]]
|
|
; CHECK-NEXT: store float [[TMP3]], float* [[ARRAYIDX]], align 4
|
|
; CHECK-NEXT: [[INC]] = add nuw nsw i32 [[I_0]], 1
|
|
; CHECK-NEXT: br label [[FOR_COND]]
|
|
;
|
|
entry:
|
|
br label %for.cond
|
|
|
|
for.cond: ; preds = %for.body, %entry
|
|
%i.0 = phi i32 [ 0, %entry ], [ %inc, %for.body ]
|
|
%cmp = icmp ult i32 %i.0, 1000
|
|
br i1 %cmp, label %for.body, label %for.cond.cleanup
|
|
|
|
for.cond.cleanup: ; preds = %for.cond
|
|
ret void
|
|
|
|
for.body: ; preds = %for.cond
|
|
%0 = zext i32 %i.0 to i64
|
|
%arrayidx = getelementptr inbounds [1000 x float], [1000 x float]* @a, i64 0, i64 %0
|
|
%arrayidx2 = getelementptr inbounds [1000 x float], [1000 x float]* @b, i64 0, i64 %0
|
|
%1 = load float, float* %arrayidx, align 4
|
|
%2 = load float, float* %arrayidx2, align 4
|
|
%cmp.i = fcmp fast olt float %1, %2
|
|
%__b.__a.i = select i1 %cmp.i, float* %arrayidx2, float* %arrayidx
|
|
%3 = bitcast float* %__b.__a.i to i32*
|
|
%4 = load i32, i32* %3, align 4
|
|
%5 = bitcast float* %arrayidx to i32*
|
|
store i32 %4, i32* %5, align 4
|
|
%inc = add nuw nsw i32 %i.0, 1
|
|
br label %for.cond
|
|
}
|
|
|
|
define i32 @store_bitcasted_load(i1 %cond, float* dereferenceable(4) %addr1, float* dereferenceable(4) %addr2) {
|
|
; CHECK-LABEL: @store_bitcasted_load(
|
|
; CHECK-NEXT: [[SEL:%.*]] = select i1 [[COND:%.*]], float* [[ADDR1:%.*]], float* [[ADDR2:%.*]]
|
|
; CHECK-NEXT: [[BC1:%.*]] = bitcast float* [[SEL]] to i32*
|
|
; CHECK-NEXT: [[LD:%.*]] = load i32, i32* [[BC1]], align 4
|
|
; CHECK-NEXT: ret i32 [[LD]]
|
|
;
|
|
%sel = select i1 %cond, float* %addr1, float* %addr2
|
|
%bc1 = bitcast float* %sel to i32*
|
|
%ld = load i32, i32* %bc1
|
|
ret i32 %ld
|
|
}
|
|
|
|
define void @bitcasted_store(i1 %cond, float* %loadaddr1, float* %loadaddr2, float* %storeaddr) {
|
|
; CHECK-LABEL: @bitcasted_store(
|
|
; 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
|
|
;
|
|
%sel = select i1 %cond, float* %loadaddr1, float* %loadaddr2
|
|
%int_load_addr = bitcast float* %sel to i32*
|
|
%ld = load i32, i32* %int_load_addr
|
|
%int_store_addr = bitcast float* %storeaddr to i32*
|
|
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: [[LD3:%.*]] = select i1 [[COND]], float [[LD1]], float [[LD2]]
|
|
; CHECK-NEXT: store float [[LD3]], float* [[STOREADDR:%.*]], 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
|
|
}
|