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; RUN: opt < %s -O3 -S | FileCheck %s
; See issue #55013 and PR #70845 for more details.
; This test comes from the following C program, compiled with clang
;
;; short vecreduce_smin_v2i16(int n, short* v)
;; {
;; short p = 0;
;; for (int i = 0; i < n; ++i)
;; p = p > v[i] ? v[i] : p;
;; return p;
;; }
;
;; short vecreduce_smax_v2i16(int n, short* v)
;; {
;; short p = 0;
;; for (int i = 0; i < n; ++i)
;; p = p < v[i] ? v[i] : p;
;; return p;
;; }
define i16 @vecreduce_smin_v2i16(i32 %n, ptr %v) {
; CHECK-LABEL: define range(i16 -32768, 1) i16 @vecreduce_smin_v2i16(
; CHECK: @llvm.smin.v2i16
entry:
br label %for.cond
for.cond: ; preds = %for.inc, %entry
%p.0 = phi i16 [ 0, %entry ], [ %conv8, %for.inc ]
%i.0 = phi i32 [ 0, %entry ], [ %inc, %for.inc ]
%cmp = icmp slt i32 %i.0, %n
br i1 %cmp, label %for.body, label %for.end
for.body: ; preds = %for.cond
%conv = sext i16 %p.0 to i32
%idxprom = sext i32 %i.0 to i64
%arrayidx = getelementptr inbounds i16, ptr %v, i64 %idxprom
%0 = load i16, ptr %arrayidx, align 2
%conv1 = sext i16 %0 to i32
%cmp2 = icmp sgt i32 %conv, %conv1
br i1 %cmp2, label %cond.true, label %cond.false
cond.true: ; preds = %for.body
%idxprom4 = sext i32 %i.0 to i64
%arrayidx5 = getelementptr inbounds i16, ptr %v, i64 %idxprom4
%1 = load i16, ptr %arrayidx5, align 2
%conv6 = sext i16 %1 to i32
br label %cond.end
cond.false: ; preds = %for.body
%conv7 = sext i16 %p.0 to i32
br label %cond.end
cond.end: ; preds = %cond.false, %cond.true
%cond = phi i32 [ %conv6, %cond.true ], [ %conv7, %cond.false ]
%conv8 = trunc i32 %cond to i16
br label %for.inc
for.inc: ; preds = %cond.end
%inc = add nsw i32 %i.0, 1
br label %for.cond
for.end: ; preds = %for.cond
ret i16 %p.0
}
define i16 @vecreduce_smax_v2i16(i32 %n, ptr %v) {
; CHECK-LABEL: define range(i16 0, -32768) i16 @vecreduce_smax_v2i16(
; CHECK: @llvm.smax.v2i16
entry:
br label %for.cond
for.cond: ; preds = %for.inc, %entry
%p.0 = phi i16 [ 0, %entry ], [ %conv8, %for.inc ]
%i.0 = phi i32 [ 0, %entry ], [ %inc, %for.inc ]
%cmp = icmp slt i32 %i.0, %n
br i1 %cmp, label %for.body, label %for.end
for.body: ; preds = %for.cond
%conv = sext i16 %p.0 to i32
%idxprom = sext i32 %i.0 to i64
%arrayidx = getelementptr inbounds i16, ptr %v, i64 %idxprom
%0 = load i16, ptr %arrayidx, align 2
%conv1 = sext i16 %0 to i32
%cmp2 = icmp slt i32 %conv, %conv1
br i1 %cmp2, label %cond.true, label %cond.false
cond.true: ; preds = %for.body
%idxprom4 = sext i32 %i.0 to i64
%arrayidx5 = getelementptr inbounds i16, ptr %v, i64 %idxprom4
%1 = load i16, ptr %arrayidx5, align 2
%conv6 = sext i16 %1 to i32
br label %cond.end
cond.false: ; preds = %for.body
%conv7 = sext i16 %p.0 to i32
br label %cond.end
cond.end: ; preds = %cond.false, %cond.true
%cond = phi i32 [ %conv6, %cond.true ], [ %conv7, %cond.false ]
%conv8 = trunc i32 %cond to i16
br label %for.inc
for.inc: ; preds = %cond.end
%inc = add nsw i32 %i.0, 1
br label %for.cond
for.end: ; preds = %for.cond
ret i16 %p.0
}
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