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authorLukas Zaoral <lzaoral@redhat.com>2021-05-27 21:20:58 +0200
committerMartinNowack <2443641+MartinNowack@users.noreply.github.com>2021-09-10 15:14:56 +0100
commit96aa751760b4efc3424a82b573057008bc639c3b (patch)
tree312ec435f64030f04d0876d68239f034c8e61c09 /test
parentf61db845d73d07261950dbd37cf7935bcac6acb7 (diff)
downloadklee-96aa751760b4efc3424a82b573057008bc639c3b.tar.gz
llvm12: Implement llvm.{s,u}{max,min} intrinsics
The vector variants are not implemented at the moment.
See: https://reviews.llvm.org/D84125

Co-authored-by: Lukas Zaoral <lzaoral@redhat.com>
Co-authored-by: Martin Nowack <m.nowack@imperial.ac.uk>
Diffstat (limited to 'test')
-rw-r--r--test/Intrinsics/MinMax.ll36
1 files changed, 36 insertions, 0 deletions
diff --git a/test/Intrinsics/MinMax.ll b/test/Intrinsics/MinMax.ll
new file mode 100644
index 00000000..c2dc66f5
--- /dev/null
+++ b/test/Intrinsics/MinMax.ll
@@ -0,0 +1,36 @@
+; REQUIRES: geq-llvm-12.0
+; RUN: rm -rf %t.klee-out
+; RUN: %klee -exit-on-error --output-dir=%t.klee-out --optimize=false %s
+define dso_local i32 @main() local_unnamed_addr {
+  smax:
+  %0 = call i32 @llvm.smax.i32(i32 -10, i32 10)
+  %cmp = icmp ne i32 %0, 10
+  br i1 %cmp, label %abort.block, label %smin
+
+  smin:
+  %1 = call i32 @llvm.smin.i32(i32 -10, i32 10)
+  %cmp1 = icmp ne i32 %1, -10
+  br i1 %cmp1, label %abort.block, label %umax
+
+  umax:
+  %2 = call i32 @llvm.umax.i32(i32 10, i32 20)
+  %cmp2 = icmp ne i32 %2, 20
+  br i1 %cmp2, label %abort.block, label %umin
+
+  umin:
+  %3 = call i32 @llvm.umin.i32(i32 10, i32 5)
+  %cmp3 = icmp ne i32 %3, 5
+  br i1 %cmp3, label %abort.block, label %exit.block
+
+  exit.block:
+    ret i32 0
+
+  abort.block:
+    call void @abort()
+    unreachable
+}
+declare void @abort() noreturn nounwind
+declare i32 @llvm.smax.i32(i32, i32)
+declare i32 @llvm.smin.i32(i32, i32)
+declare i32 @llvm.umax.i32(i32, i32)
+declare i32 @llvm.umin.i32(i32, i32)