forked from OSchip/llvm-project
66 lines
2.4 KiB
LLVM
66 lines
2.4 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -indvars -S | FileCheck %s
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; Indvars should be able to compute the exit value of this loop
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; without any additional arithmetic. The only add needed should
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; be the canonical IV increment.
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target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128"
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define void @foo(double* %p, i32 %n) nounwind {
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; CHECK-LABEL: @foo(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[TMP0:%.*]] = icmp sgt i32 [[N:%.*]], 0
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; CHECK-NEXT: br i1 [[TMP0]], label [[BB_NPH:%.*]], label [[RETURN:%.*]]
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; CHECK: bb.nph:
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; CHECK-NEXT: br label [[BB2:%.*]]
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; CHECK: bb2:
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; CHECK-NEXT: [[I_01:%.*]] = phi i32 [ [[TMP7:%.*]], [[BB3:%.*]] ], [ 0, [[BB_NPH]] ]
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; CHECK-NEXT: [[TMP1:%.*]] = sext i32 [[I_01]] to i64
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; CHECK-NEXT: [[TMP2:%.*]] = getelementptr double, double* [[P:%.*]], i64 [[TMP1]]
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; CHECK-NEXT: [[TMP3:%.*]] = load double, double* [[TMP2]], align 8
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; CHECK-NEXT: [[TMP4:%.*]] = fmul double [[TMP3]], 1.100000e+00
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; CHECK-NEXT: [[TMP5:%.*]] = sext i32 [[I_01]] to i64
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; CHECK-NEXT: [[TMP6:%.*]] = getelementptr double, double* [[P]], i64 [[TMP5]]
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; CHECK-NEXT: store double [[TMP4]], double* [[TMP6]], align 8
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; CHECK-NEXT: [[TMP7]] = add nuw nsw i32 [[I_01]], 1
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; CHECK-NEXT: br label [[BB3]]
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; CHECK: bb3:
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; CHECK-NEXT: [[TMP8:%.*]] = icmp slt i32 [[TMP7]], [[N]]
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; CHECK-NEXT: br i1 [[TMP8]], label [[BB2]], label [[BB3_RETURN_CRIT_EDGE:%.*]]
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; CHECK: bb3.return_crit_edge:
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; CHECK-NEXT: br label [[RETURN]]
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; CHECK: return:
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; CHECK-NEXT: ret void
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;
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entry:
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%0 = icmp sgt i32 %n, 0
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br i1 %0, label %bb.nph, label %return
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bb.nph: ; preds = %entry
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br label %bb2
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bb2: ; preds = %bb3, %bb.nph
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%i.01 = phi i32 [ %7, %bb3 ], [ 0, %bb.nph ]
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%1 = sext i32 %i.01 to i64
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%2 = getelementptr double, double* %p, i64 %1
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%3 = load double, double* %2, align 8
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%4 = fmul double %3, 1.100000e+00
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%5 = sext i32 %i.01 to i64
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%6 = getelementptr double, double* %p, i64 %5
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store double %4, double* %6, align 8
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%7 = add i32 %i.01, 1
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br label %bb3
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bb3: ; preds = %bb2
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%8 = icmp slt i32 %7, %n
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br i1 %8, label %bb2, label %bb3.return_crit_edge
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bb3.return_crit_edge: ; preds = %bb3
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br label %return
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return: ; preds = %bb3.return_crit_edge, %entry
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ret void
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}
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