1 files changed, 110 insertions, 0 deletions
diff --git a/test/CodeGen/X86/imul.ll b/test/CodeGen/X86/imul.ll
new file mode 100644
index 0000000..c64b4e3
--- /dev/null
+++ b/test/CodeGen/X86/imul.ll
@@ -0,0 +1,110 @@
+; RUN: llc < %s -mtriple=x86_64-pc-linux-gnu | FileCheck %s --check-prefix=X64
+; RUN: llc < %s -mtriple=x86_64-pc-linux-gnux32 | FileCheck %s --check-prefix=X64
+; RUN: llc < %s -mtriple=i686-pc-linux | FileCheck %s --check-prefix=X86
+
+define i32 @mul4_32(i32 %A) {
+; X64-LABEL: mul4_32:
+; X64: leal
+; X86-LABEL: mul4_32:
+; X86: shll
+    %mul = mul i32 %A, 4
+    ret i32 %mul
+}
+
+define i64 @mul4_64(i64 %A) {
+; X64-LABEL: mul4_64:
+; X64: leaq
+; X86-LABEL: mul4_64:
+; X86: shldl
+; X86: shll
+    %mul = mul i64 %A, 4
+    ret i64 %mul
+}
+
+define i32 @mul4096_32(i32 %A) {
+; X64-LABEL: mul4096_32:
+; X64: shll
+; X86-LABEL: mul4096_32:
+; X86: shll
+    %mul = mul i32 %A, 4096
+    ret i32 %mul
+}
+
+define i64 @mul4096_64(i64 %A) {
+; X64-LABEL: mul4096_64:
+; X64: shlq
+; X86-LABEL: mul4096_64:
+; X86: shldl
+; X86: shll
+    %mul = mul i64 %A, 4096
+    ret i64 %mul
+}
+
+define i32 @mulmin4096_32(i32 %A) {
+; X64-LABEL: mulmin4096_32:
+; X64: shll
+; X64-NEXT: negl
+; X86-LABEL: mulmin4096_32:
+; X86: shll
+; X86-NEXT: negl
+    %mul = mul i32 %A, -4096
+    ret i32 %mul
+}
+
+define i64 @mulmin4096_64(i64 %A) {
+; X64-LABEL: mulmin4096_64:
+; X64: shlq
+; X64-NEXT: negq
+; X86-LABEL: mulmin4096_64:
+; X86: shldl
+; X86-NEXT: shll
+; X86-NEXT: xorl
+; X86-NEXT: negl
+; X86-NEXT: sbbl
+    %mul = mul i64 %A, -4096
+    ret i64 %mul
+}
+
+define i32 @mul3_32(i32 %A) {
+; X64-LABEL: mul3_32:
+; X64: leal
+; X86-LABEL: mul3_32:
+; But why?!
+; X86: imull
+    %mul = mul i32 %A, 3
+    ret i32 %mul
+}
+
+define i64 @mul3_64(i64 %A) {
+; X64-LABEL: mul3_64:
+; X64: leaq
+; X86-LABEL: mul3_64:
+; X86: mull
+; X86-NEXT: imull
+    %mul = mul i64 %A, 3
+    ret i64 %mul
+}
+
+define i32 @mul40_32(i32 %A) {
+; X64-LABEL: mul40_32:
+; X64: shll
+; X64-NEXT: leal
+; X86-LABEL: mul40_32:
+; X86: shll
+; X86-NEXT: leal
+    %mul = mul i32 %A, 40
+    ret i32 %mul
+}
+
+define i64 @mul40_64(i64 %A) {
+; X64-LABEL: mul40_64:
+; X64: shlq
+; X64-NEXT: leaq
+; X86-LABEL: mul40_64:
+; X86: leal
+; X86-NEXT: movl
+; X86-NEXT: mull
+; X86-NEXT: leal
+    %mul = mul i64 %A, 40
+    ret i64 %mul
+}