xref: /llvm-project/llvm/test/CodeGen/SPARC/overflow-intrinsic-optimizations.ll (revision ff9af4c43ad71eeba2cabe99609cfaa0fd54c1d0)
139e5dd11SNick Desaulniers; RUN: llc %s -mtriple=sparc -o - | FileCheck %s
239e5dd11SNick Desaulniers; RUN: llc %s -mtriple=sparc64 -o - | FileCheck %s
339e5dd11SNick Desaulniersdeclare { i128, i1 } @llvm.smul.with.overflow.i128(i128, i128)
439e5dd11SNick Desaulniersdeclare { i64, i1 } @llvm.smul.with.overflow.i64(i64, i64)
539e5dd11SNick Desaulniers
6*ff9af4c4SNikita Popovdefine i32 @mul(i128 %a, i128 %b, ptr %r) {
739e5dd11SNick Desaulniers; CHECK-LABEL: mul
839e5dd11SNick Desaulniers; CHECK-NOT: call __muloti4
939e5dd11SNick Desaulniers  %mul4 = tail call { i128, i1 } @llvm.smul.with.overflow.i128(i128 %a, i128 %b)
1039e5dd11SNick Desaulniers  %mul.val = extractvalue { i128, i1 } %mul4, 0
1139e5dd11SNick Desaulniers  %mul.ov = extractvalue { i128, i1 } %mul4, 1
1239e5dd11SNick Desaulniers  %mul.not.ov = xor i1 %mul.ov, true
13*ff9af4c4SNikita Popov  store i128 %mul.val, ptr %r, align 16
1439e5dd11SNick Desaulniers  %conv = zext i1 %mul.not.ov to i32
1539e5dd11SNick Desaulniers  ret i32 %conv
1639e5dd11SNick Desaulniers}
1739e5dd11SNick Desaulniers
18*ff9af4c4SNikita Popovdefine i32 @mul2(i64 %a, i64 %b, ptr %r) {
1939e5dd11SNick Desaulniers; CHECK-LABEL: mul2
2039e5dd11SNick Desaulniers; CHECK-NOT: call __mulodi4
2139e5dd11SNick Desaulniers  %mul4 = tail call { i64, i1 } @llvm.smul.with.overflow.i64(i64 %a, i64 %b)
2239e5dd11SNick Desaulniers  %mul.val = extractvalue { i64, i1 } %mul4, 0
2339e5dd11SNick Desaulniers  %mul.ov = extractvalue { i64, i1 } %mul4, 1
2439e5dd11SNick Desaulniers  %mul.not.ov = xor i1 %mul.ov, true
25*ff9af4c4SNikita Popov  store i64 %mul.val, ptr %r, align 16
2639e5dd11SNick Desaulniers  %conv = zext i1 %mul.not.ov to i32
2739e5dd11SNick Desaulniers  ret i32 %conv
2839e5dd11SNick Desaulniers}
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