Mercurial > hg > CbC > CbC_llvm

diff test/CodeGen/SystemZ/int-cmp-32.ll @ 0:95c75e76d11b LLVM3.4

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
LLVM 3.4
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Thu, 12 Dec 2013 13:56:28 +0900
parents
children afa8332a0e37
line wrap: on
line diff
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/CodeGen/SystemZ/int-cmp-32.ll	Thu Dec 12 13:56:28 2013 +0900
@@ -0,0 +1,237 @@
+; Test 32-bit signed comparisons between memory and a constant.
+;
+; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
+
+; Check ordered comparisons with 0.
+define double @f1(double %a, double %b, i32 *%ptr) {
+; CHECK-LABEL: f1:
+; CHECK: chsi 0(%r2), 0
+; CHECK-NEXT: jl
+; CHECK: ldr %f0, %f2
+; CHECK: br %r14
+  %val = load i32 *%ptr
+  %cond = icmp slt i32 %val, 0
+  %res = select i1 %cond, double %a, double %b
+  ret double %res
+}
+
+; Check ordered comparisons with 1.
+define double @f2(double %a, double %b, i32 *%ptr) {
+; CHECK-LABEL: f2:
+; CHECK: chsi 0(%r2), 0
+; CHECK-NEXT: jle
+; CHECK: ldr %f0, %f2
+; CHECK: br %r14
+  %val = load i32 *%ptr
+  %cond = icmp slt i32 %val, 1
+  %res = select i1 %cond, double %a, double %b
+  ret double %res
+}
+
+; Check ordered comparisons with the high end of the signed 16-bit range.
+define double @f3(double %a, double %b, i32 *%ptr) {
+; CHECK-LABEL: f3:
+; CHECK: chsi 0(%r2), 32767
+; CHECK-NEXT: jl
+; CHECK: ldr %f0, %f2
+; CHECK: br %r14
+  %val = load i32 *%ptr
+  %cond = icmp slt i32 %val, 32767
+  %res = select i1 %cond, double %a, double %b
+  ret double %res
+}
+
+; Check the next value up, which can't use CHSI.
+define double @f4(double %a, double %b, i32 *%ptr) {
+; CHECK-LABEL: f4:
+; CHECK-NOT: chsi
+; CHECK: br %r14
+  %val = load i32 *%ptr
+  %cond = icmp slt i32 %val, 32768
+  %res = select i1 %cond, double %a, double %b
+  ret double %res
+}
+
+; Check ordered comparisons with -1.
+define double @f5(double %a, double %b, i32 *%ptr) {
+; CHECK-LABEL: f5:
+; CHECK: chsi 0(%r2), -1
+; CHECK-NEXT: jl
+; CHECK: ldr %f0, %f2
+; CHECK: br %r14
+  %val = load i32 *%ptr
+  %cond = icmp slt i32 %val, -1
+  %res = select i1 %cond, double %a, double %b
+  ret double %res
+}
+
+; Check ordered comparisons with the low end of the 16-bit signed range.
+define double @f6(double %a, double %b, i32 *%ptr) {
+; CHECK-LABEL: f6:
+; CHECK: chsi 0(%r2), -32768
+; CHECK-NEXT: jl
+; CHECK: ldr %f0, %f2
+; CHECK: br %r14
+  %val = load i32 *%ptr
+  %cond = icmp slt i32 %val, -32768
+  %res = select i1 %cond, double %a, double %b
+  ret double %res
+}
+
+; Check the next value down, which can't use CHSI.
+define double @f7(double %a, double %b, i32 *%ptr) {
+; CHECK-LABEL: f7:
+; CHECK-NOT: chsi
+; CHECK: br %r14
+  %val = load i32 *%ptr
+  %cond = icmp slt i32 %val, -32769
+  %res = select i1 %cond, double %a, double %b
+  ret double %res
+}
+
+; Check equality comparisons with 0.
+define double @f8(double %a, double %b, i32 *%ptr) {
+; CHECK-LABEL: f8:
+; CHECK: chsi 0(%r2), 0
+; CHECK-NEXT: je
+; CHECK: ldr %f0, %f2
+; CHECK: br %r14
+  %val = load i32 *%ptr
+  %cond = icmp eq i32 %val, 0
+  %res = select i1 %cond, double %a, double %b
+  ret double %res
+}
+
+; Check equality comparisons with 1.
+define double @f9(double %a, double %b, i32 *%ptr) {
+; CHECK-LABEL: f9:
+; CHECK: chsi 0(%r2), 1
+; CHECK-NEXT: je
+; CHECK: ldr %f0, %f2
+; CHECK: br %r14
+  %val = load i32 *%ptr
+  %cond = icmp eq i32 %val, 1
+  %res = select i1 %cond, double %a, double %b
+  ret double %res
+}
+
+; Check equality comparisons with the high end of the signed 16-bit range.
+define double @f10(double %a, double %b, i32 *%ptr) {
+; CHECK-LABEL: f10:
+; CHECK: chsi 0(%r2), 32767
+; CHECK-NEXT: je
+; CHECK: ldr %f0, %f2
+; CHECK: br %r14
+  %val = load i32 *%ptr
+  %cond = icmp eq i32 %val, 32767
+  %res = select i1 %cond, double %a, double %b
+  ret double %res
+}
+
+; Check the next value up, which can't use CHSI.
+define double @f11(double %a, double %b, i32 *%ptr) {
+; CHECK-LABEL: f11:
+; CHECK-NOT: chsi
+; CHECK: br %r14
+  %val = load i32 *%ptr
+  %cond = icmp eq i32 %val, 32768
+  %res = select i1 %cond, double %a, double %b
+  ret double %res
+}
+
+; Check equality comparisons with -1.
+define double @f12(double %a, double %b, i32 *%ptr) {
+; CHECK-LABEL: f12:
+; CHECK: chsi 0(%r2), -1
+; CHECK-NEXT: je
+; CHECK: ldr %f0, %f2
+; CHECK: br %r14
+  %val = load i32 *%ptr
+  %cond = icmp eq i32 %val, -1
+  %res = select i1 %cond, double %a, double %b
+  ret double %res
+}
+
+; Check equality comparisons with the low end of the 16-bit signed range.
+define double @f13(double %a, double %b, i32 *%ptr) {
+; CHECK-LABEL: f13:
+; CHECK: chsi 0(%r2), -32768
+; CHECK-NEXT: je
+; CHECK: ldr %f0, %f2
+; CHECK: br %r14
+  %val = load i32 *%ptr
+  %cond = icmp eq i32 %val, -32768
+  %res = select i1 %cond, double %a, double %b
+  ret double %res
+}
+
+; Check the next value down, which should be treated as a positive value.
+define double @f14(double %a, double %b, i32 *%ptr) {
+; CHECK-LABEL: f14:
+; CHECK-NOT: chsi
+; CHECK: br %r14
+  %val = load i32 *%ptr
+  %cond = icmp eq i32 %val, -32769
+  %res = select i1 %cond, double %a, double %b
+  ret double %res
+}
+
+; Check the high end of the CHSI range.
+define double @f15(double %a, double %b, i32 %i1, i32 *%base) {
+; CHECK-LABEL: f15:
+; CHECK: chsi 4092(%r3), 0
+; CHECK-NEXT: jl
+; CHECK: ldr %f0, %f2
+; CHECK: br %r14
+  %ptr = getelementptr i32 *%base, i64 1023
+  %val = load i32 *%ptr
+  %cond = icmp slt i32 %val, 0
+  %res = select i1 %cond, double %a, double %b
+  ret double %res
+}
+
+; Check the next word up, which needs separate address logic,
+define double @f16(double %a, double %b, i32 *%base) {
+; CHECK-LABEL: f16:
+; CHECK: aghi %r2, 4096
+; CHECK: chsi 0(%r2), 0
+; CHECK-NEXT: jl
+; CHECK: ldr %f0, %f2
+; CHECK: br %r14
+  %ptr = getelementptr i32 *%base, i64 1024
+  %val = load i32 *%ptr
+  %cond = icmp slt i32 %val, 0
+  %res = select i1 %cond, double %a, double %b
+  ret double %res
+}
+
+; Check negative offsets, which also need separate address logic.
+define double @f17(double %a, double %b, i32 *%base) {
+; CHECK-LABEL: f17:
+; CHECK: aghi %r2, -4
+; CHECK: chsi 0(%r2), 0
+; CHECK-NEXT: jl
+; CHECK: ldr %f0, %f2
+; CHECK: br %r14
+  %ptr = getelementptr i32 *%base, i64 -1
+  %val = load i32 *%ptr
+  %cond = icmp slt i32 %val, 0
+  %res = select i1 %cond, double %a, double %b
+  ret double %res
+}
+
+; Check that CHSI does not allow indices.
+define double @f18(double %a, double %b, i64 %base, i64 %index) {
+; CHECK-LABEL: f18:
+; CHECK: agr {{%r2, %r3|%r3, %r2}}
+; CHECK: chsi 0({{%r[23]}}), 0
+; CHECK-NEXT: jl
+; CHECK: ldr %f0, %f2
+; CHECK: br %r14
+  %add = add i64 %base, %index
+  %ptr = inttoptr i64 %add to i32 *
+  %val = load i32 *%ptr
+  %cond = icmp slt i32 %val, 0
+  %res = select i1 %cond, double %a, double %b
+  ret double %res
+}