[NVPTX] Add support for envreg reads

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211930 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 139 insertions, 0 deletions

diff --git a/test/CodeGen/NVPTX/envreg.ll b/test/CodeGen/NVPTX/envreg.ll
new file mode 100644
index 0000000000..a341b49ecd
--- /dev/null
+++ b/test/CodeGen/NVPTX/envreg.ll
@@ -0,0 +1,139 @@
+; RUN: llc < %s -march=nvptx -mcpu=sm_20 | FileCheck %s
+
+
+declare i32 @llvm.nvvm.read.ptx.sreg.envreg0()
+declare i32 @llvm.nvvm.read.ptx.sreg.envreg1()
+declare i32 @llvm.nvvm.read.ptx.sreg.envreg2()
+declare i32 @llvm.nvvm.read.ptx.sreg.envreg3()
+declare i32 @llvm.nvvm.read.ptx.sreg.envreg4()
+declare i32 @llvm.nvvm.read.ptx.sreg.envreg5()
+declare i32 @llvm.nvvm.read.ptx.sreg.envreg6()
+declare i32 @llvm.nvvm.read.ptx.sreg.envreg7()
+declare i32 @llvm.nvvm.read.ptx.sreg.envreg8()
+declare i32 @llvm.nvvm.read.ptx.sreg.envreg9()
+declare i32 @llvm.nvvm.read.ptx.sreg.envreg10()
+declare i32 @llvm.nvvm.read.ptx.sreg.envreg11()
+declare i32 @llvm.nvvm.read.ptx.sreg.envreg12()
+declare i32 @llvm.nvvm.read.ptx.sreg.envreg13()
+declare i32 @llvm.nvvm.read.ptx.sreg.envreg14()
+declare i32 @llvm.nvvm.read.ptx.sreg.envreg15()
+declare i32 @llvm.nvvm.read.ptx.sreg.envreg16()
+declare i32 @llvm.nvvm.read.ptx.sreg.envreg17()
+declare i32 @llvm.nvvm.read.ptx.sreg.envreg18()
+declare i32 @llvm.nvvm.read.ptx.sreg.envreg19()
+declare i32 @llvm.nvvm.read.ptx.sreg.envreg20()
+declare i32 @llvm.nvvm.read.ptx.sreg.envreg21()
+declare i32 @llvm.nvvm.read.ptx.sreg.envreg22()
+declare i32 @llvm.nvvm.read.ptx.sreg.envreg23()
+declare i32 @llvm.nvvm.read.ptx.sreg.envreg24()
+declare i32 @llvm.nvvm.read.ptx.sreg.envreg25()
+declare i32 @llvm.nvvm.read.ptx.sreg.envreg26()
+declare i32 @llvm.nvvm.read.ptx.sreg.envreg27()
+declare i32 @llvm.nvvm.read.ptx.sreg.envreg28()
+declare i32 @llvm.nvvm.read.ptx.sreg.envreg29()
+declare i32 @llvm.nvvm.read.ptx.sreg.envreg30()
+declare i32 @llvm.nvvm.read.ptx.sreg.envreg31()
+
+
+; CHECK: foo
+define i32 @foo() {
+; CHECK: mov.b32 %r{{[0-9]+}}, %envreg0
+  %val0 = tail call i32 @llvm.nvvm.read.ptx.sreg.envreg0()
+; CHECK: mov.b32 %r{{[0-9]+}}, %envreg1
+  %val1 = tail call i32 @llvm.nvvm.read.ptx.sreg.envreg1()
+; CHECK: mov.b32 %r{{[0-9]+}}, %envreg2
+  %val2 = tail call i32 @llvm.nvvm.read.ptx.sreg.envreg2()
+; CHECK: mov.b32 %r{{[0-9]+}}, %envreg3
+  %val3 = tail call i32 @llvm.nvvm.read.ptx.sreg.envreg3()
+; CHECK: mov.b32 %r{{[0-9]+}}, %envreg4
+  %val4 = tail call i32 @llvm.nvvm.read.ptx.sreg.envreg4()
+; CHECK: mov.b32 %r{{[0-9]+}}, %envreg5
+  %val5 = tail call i32 @llvm.nvvm.read.ptx.sreg.envreg5()
+; CHECK: mov.b32 %r{{[0-9]+}}, %envreg6
+  %val6 = tail call i32 @llvm.nvvm.read.ptx.sreg.envreg6()
+; CHECK: mov.b32 %r{{[0-9]+}}, %envreg7
+  %val7 = tail call i32 @llvm.nvvm.read.ptx.sreg.envreg7()
+; CHECK: mov.b32 %r{{[0-9]+}}, %envreg8
+  %val8 = tail call i32 @llvm.nvvm.read.ptx.sreg.envreg8()
+; CHECK: mov.b32 %r{{[0-9]+}}, %envreg9
+  %val9 = tail call i32 @llvm.nvvm.read.ptx.sreg.envreg9()
+; CHECK: mov.b32 %r{{[0-9]+}}, %envreg10
+  %val10 = tail call i32 @llvm.nvvm.read.ptx.sreg.envreg10()
+; CHECK: mov.b32 %r{{[0-9]+}}, %envreg11
+  %val11 = tail call i32 @llvm.nvvm.read.ptx.sreg.envreg11()
+; CHECK: mov.b32 %r{{[0-9]+}}, %envreg12
+  %val12 = tail call i32 @llvm.nvvm.read.ptx.sreg.envreg12()
+; CHECK: mov.b32 %r{{[0-9]+}}, %envreg13
+  %val13 = tail call i32 @llvm.nvvm.read.ptx.sreg.envreg13()
+; CHECK: mov.b32 %r{{[0-9]+}}, %envreg14
+  %val14 = tail call i32 @llvm.nvvm.read.ptx.sreg.envreg14()
+; CHECK: mov.b32 %r{{[0-9]+}}, %envreg15
+  %val15 = tail call i32 @llvm.nvvm.read.ptx.sreg.envreg15()
+; CHECK: mov.b32 %r{{[0-9]+}}, %envreg16
+  %val16 = tail call i32 @llvm.nvvm.read.ptx.sreg.envreg16()
+; CHECK: mov.b32 %r{{[0-9]+}}, %envreg17
+  %val17 = tail call i32 @llvm.nvvm.read.ptx.sreg.envreg17()
+; CHECK: mov.b32 %r{{[0-9]+}}, %envreg18
+  %val18 = tail call i32 @llvm.nvvm.read.ptx.sreg.envreg18()
+; CHECK: mov.b32 %r{{[0-9]+}}, %envreg19
+  %val19 = tail call i32 @llvm.nvvm.read.ptx.sreg.envreg19()
+; CHECK: mov.b32 %r{{[0-9]+}}, %envreg20
+  %val20 = tail call i32 @llvm.nvvm.read.ptx.sreg.envreg20()
+; CHECK: mov.b32 %r{{[0-9]+}}, %envreg21
+  %val21 = tail call i32 @llvm.nvvm.read.ptx.sreg.envreg21()
+; CHECK: mov.b32 %r{{[0-9]+}}, %envreg22
+  %val22 = tail call i32 @llvm.nvvm.read.ptx.sreg.envreg22()
+; CHECK: mov.b32 %r{{[0-9]+}}, %envreg23
+  %val23 = tail call i32 @llvm.nvvm.read.ptx.sreg.envreg23()
+; CHECK: mov.b32 %r{{[0-9]+}}, %envreg24
+  %val24 = tail call i32 @llvm.nvvm.read.ptx.sreg.envreg24()
+; CHECK: mov.b32 %r{{[0-9]+}}, %envreg25
+  %val25 = tail call i32 @llvm.nvvm.read.ptx.sreg.envreg25()
+; CHECK: mov.b32 %r{{[0-9]+}}, %envreg26
+  %val26 = tail call i32 @llvm.nvvm.read.ptx.sreg.envreg26()
+; CHECK: mov.b32 %r{{[0-9]+}}, %envreg27
+  %val27 = tail call i32 @llvm.nvvm.read.ptx.sreg.envreg27()
+; CHECK: mov.b32 %r{{[0-9]+}}, %envreg28
+  %val28 = tail call i32 @llvm.nvvm.read.ptx.sreg.envreg28()
+; CHECK: mov.b32 %r{{[0-9]+}}, %envreg29
+  %val29 = tail call i32 @llvm.nvvm.read.ptx.sreg.envreg29()
+; CHECK: mov.b32 %r{{[0-9]+}}, %envreg30
+  %val30 = tail call i32 @llvm.nvvm.read.ptx.sreg.envreg30()
+; CHECK: mov.b32 %r{{[0-9]+}}, %envreg31
+  %val31 = tail call i32 @llvm.nvvm.read.ptx.sreg.envreg31()
+
+
+  %ret0 = add i32 %val0, %val1
+  %ret1 = add i32 %ret0, %val2
+  %ret2 = add i32 %ret1, %val3
+  %ret3 = add i32 %ret2, %val4
+  %ret4 = add i32 %ret3, %val5
+  %ret5 = add i32 %ret4, %val6
+  %ret6 = add i32 %ret5, %val7
+  %ret7 = add i32 %ret6, %val8
+  %ret8 = add i32 %ret7, %val9
+  %ret9 = add i32 %ret8, %val10
+  %ret10 = add i32 %ret9, %val11
+  %ret11 = add i32 %ret10, %val12
+  %ret12 = add i32 %ret11, %val13
+  %ret13 = add i32 %ret12, %val14
+  %ret14 = add i32 %ret13, %val15
+  %ret15 = add i32 %ret14, %val16
+  %ret16 = add i32 %ret15, %val17
+  %ret17 = add i32 %ret16, %val18
+  %ret18 = add i32 %ret17, %val19
+  %ret19 = add i32 %ret18, %val20
+  %ret20 = add i32 %ret19, %val21
+  %ret21 = add i32 %ret20, %val22
+  %ret22 = add i32 %ret21, %val23
+  %ret23 = add i32 %ret22, %val24
+  %ret24 = add i32 %ret23, %val25
+  %ret25 = add i32 %ret24, %val26
+  %ret26 = add i32 %ret25, %val27
+  %ret27 = add i32 %ret26, %val28
+  %ret28 = add i32 %ret27, %val29
+  %ret29 = add i32 %ret28, %val30
+  %ret30 = add i32 %ret29, %val31
+
+  ret i32 %ret30
+}